diff --git a/package-lock.json b/package-lock.json
index 5ad71be8..424f4589 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "pxt-calliope",
-  "version": "1.0.19",
+  "version": "1.0.20",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -20,20 +20,267 @@
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       "integrity": "sha1-l6ERlkmyEa0zaR2fn0hqjsn74KM="
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+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-bgblack/-/ansi-bgblack-0.1.1.tgz",
+      "integrity": "sha1-poulAHiHcBtqr74/oNrf36juPKI=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
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+    },
+    "ansi-bgblue": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-bgblue/-/ansi-bgblue-0.1.1.tgz",
+      "integrity": "sha1-Z73ATtybm1J4lp2hlt6j11yMNhM=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
+    },
+    "ansi-bgcyan": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-bgcyan/-/ansi-bgcyan-0.1.1.tgz",
+      "integrity": "sha1-WEiUJWAL3p9VBwaN2Wnr/bUP52g=",
+      "requires": {
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+      }
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+    "ansi-bggreen": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-bggreen/-/ansi-bggreen-0.1.1.tgz",
+      "integrity": "sha1-TjGRJIUplD9DIelr8THRwTgWr0k=",
+      "requires": {
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+      }
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+    "ansi-bgmagenta": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-bgmagenta/-/ansi-bgmagenta-0.1.1.tgz",
+      "integrity": "sha1-myhDLAduqpmUGGcqPvvhk5HCx6E=",
+      "requires": {
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+      }
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+    "ansi-bgred": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-bgred/-/ansi-bgred-0.1.1.tgz",
+      "integrity": "sha1-p2+Sg4OCukMpCmwXeEJPmE1vEEE=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
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+    "ansi-bgwhite": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-bgwhite/-/ansi-bgwhite-0.1.1.tgz",
+      "integrity": "sha1-ZQRlE3elim7OzQMxmU5IAljhG6g=",
+      "requires": {
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+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-bgyellow/-/ansi-bgyellow-0.1.1.tgz",
+      "integrity": "sha1-w/4usIzUdmSAKeaHTRWgs49h1E8=",
+      "requires": {
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+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-black/-/ansi-black-0.1.1.tgz",
+      "integrity": "sha1-9hheiJNgslRaHsUMC/Bj/EMDJFM=",
+      "requires": {
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+      "resolved": "https://registry.npmjs.org/ansi-blue/-/ansi-blue-0.1.1.tgz",
+      "integrity": "sha1-FbgEmQ6S/JyoxUds6PaZd3wh7b8=",
+      "requires": {
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+      "resolved": "https://registry.npmjs.org/ansi-bold/-/ansi-bold-0.1.1.tgz",
+      "integrity": "sha1-PmOVCvWswq4uZw5vZ96xFdGl9QU=",
+      "requires": {
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+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-0.2.0.tgz",
+      "integrity": "sha1-csMd4qDZoszQysMMyYI+6y9kNLU=",
+      "requires": {
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+        "ansi-bgblue": "0.1.1",
+        "ansi-bgcyan": "0.1.1",
+        "ansi-bggreen": "0.1.1",
+        "ansi-bgmagenta": "0.1.1",
+        "ansi-bgred": "0.1.1",
+        "ansi-bgwhite": "0.1.1",
+        "ansi-bgyellow": "0.1.1",
+        "ansi-black": "0.1.1",
+        "ansi-blue": "0.1.1",
+        "ansi-bold": "0.1.1",
+        "ansi-cyan": "0.1.1",
+        "ansi-dim": "0.1.1",
+        "ansi-gray": "0.1.1",
+        "ansi-green": "0.1.1",
+        "ansi-grey": "0.1.1",
+        "ansi-hidden": "0.1.1",
+        "ansi-inverse": "0.1.1",
+        "ansi-italic": "0.1.1",
+        "ansi-magenta": "0.1.1",
+        "ansi-red": "0.1.1",
+        "ansi-reset": "0.1.1",
+        "ansi-strikethrough": "0.1.1",
+        "ansi-underline": "0.1.1",
+        "ansi-white": "0.1.1",
+        "ansi-yellow": "0.1.1",
+        "lazy-cache": "2.0.2"
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+    "ansi-cyan": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-cyan/-/ansi-cyan-0.1.1.tgz",
+      "integrity": "sha1-U4rlKK+JgvKK4w2G8vF0VtJgmHM=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
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+    "ansi-dim": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-dim/-/ansi-dim-0.1.1.tgz",
+      "integrity": "sha1-QN5MYDqoCG2Oeoa4/5mNXDbu/Ww=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
+    },
+    "ansi-gray": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-gray/-/ansi-gray-0.1.1.tgz",
+      "integrity": "sha1-KWLPVOyXksSFEKPetSRDaGHvclE=",
+      "requires": {
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+    "ansi-green": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-green/-/ansi-green-0.1.1.tgz",
+      "integrity": "sha1-il2al55FjVfEDjNYCzc5C44Q0Pc=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
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+    "ansi-grey": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-grey/-/ansi-grey-0.1.1.tgz",
+      "integrity": "sha1-WdmLasK6GfilF5jphT+6eDOaM8E=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
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+    "ansi-hidden": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-hidden/-/ansi-hidden-0.1.1.tgz",
+      "integrity": "sha1-7WpMSY0rt8uyidvyqNHcyFZ/rg8=",
+      "requires": {
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+      "resolved": "https://registry.npmjs.org/ansi-inverse/-/ansi-inverse-0.1.1.tgz",
+      "integrity": "sha1-tq9Fgm/oJr+1KKbHmIV5Q1XM0mk=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
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+    "ansi-italic": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-italic/-/ansi-italic-0.1.1.tgz",
+      "integrity": "sha1-EEdDRj9iXBQqA2c5z4XtpoiYbyM=",
+      "requires": {
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+      "resolved": "https://registry.npmjs.org/ansi-magenta/-/ansi-magenta-0.1.1.tgz",
+      "integrity": "sha1-BjtboW+z8j4c/aKwfAqJ3hHkMK4=",
+      "requires": {
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+      "integrity": "sha1-jGOPnRCAgAo1PJwoyKgcpHBdlGw=",
+      "requires": {
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       "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
     },
+    "ansi-reset": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-reset/-/ansi-reset-0.1.1.tgz",
+      "integrity": "sha1-5+cSksPH3c1NYu9KbHwFmAkRw7c=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
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+    "ansi-strikethrough": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-strikethrough/-/ansi-strikethrough-0.1.1.tgz",
+      "integrity": "sha1-2Eh3FAss/wfRyT685pkE9oiF5Wg=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
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       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
       "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4="
     },
+    "ansi-underline": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-underline/-/ansi-underline-0.1.1.tgz",
+      "integrity": "sha1-38kg9Ml7WXfqFi34/7mIMIqqcaQ=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
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+    "ansi-white": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-white/-/ansi-white-0.1.1.tgz",
+      "integrity": "sha1-nHe3wZPF7pkuYBHTbsTJIbRXiUQ=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
+    },
+    "ansi-wrap": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/ansi-wrap/-/ansi-wrap-0.1.0.tgz",
+      "integrity": "sha1-qCJQ3bABXponyoLoLqYDu/pF768="
+    },
+    "ansi-yellow": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-yellow/-/ansi-yellow-0.1.1.tgz",
+      "integrity": "sha1-y5NW8vRscy8OMZnmEClVp32oPB0=",
+      "requires": {
+        "ansi-wrap": "0.1.0"
+      }
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     "aproba": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/aproba/-/aproba-1.2.0.tgz",
-      "integrity": "sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==",
+      "integrity": "sha1-aALmJk79GMeQobDVF/DyYnvyyUo=",
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     },
     "are-we-there-yet": {
@@ -54,6 +301,20 @@
         "sprintf-js": "1.0.3"
       }
     },
+    "arr-flatten": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.1.0.tgz",
+      "integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg=="
+    },
+    "arr-swap": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/arr-swap/-/arr-swap-1.0.1.tgz",
+      "integrity": "sha1-FHWQ7WX8gVvAf+8Jl8Llgj1kNTQ=",
+      "optional": true,
+      "requires": {
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+      }
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@@ -71,6 +332,12 @@
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       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
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+    "assign-symbols": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assign-symbols/-/assign-symbols-1.0.0.tgz",
+      "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=",
+      "optional": true
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@@ -92,7 +359,7 @@
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+          "integrity": "sha1-ut+hSX1GJE9jkPWLMZgw2RB4U8U=",
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@@ -129,7 +396,7 @@
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+      "integrity": "sha1-s0b27PapX1qBXFg5/HzbIlAvHtc=",
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@@ -144,7 +411,7 @@
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+      "integrity": "sha1-2VUfnemPH82h5oPRfukaBgLuLrk="
     },
     "boom": {
       "version": "4.3.1",
@@ -219,6 +486,17 @@
         }
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+    "choices-separator": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/choices-separator/-/choices-separator-2.0.0.tgz",
+      "integrity": "sha1-kv0XYxgteQM/XFxR0Lo1LlVnxpY=",
+      "optional": true,
+      "requires": {
+        "ansi-dim": "0.1.1",
+        "debug": "2.6.9",
+        "strip-color": "0.1.0"
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@@ -228,7 +506,7 @@
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+      "integrity": "sha1-TzZ0WzIAhJJVf0ZBLWbVDLmbzlE=",
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@@ -238,6 +516,24 @@
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       "integrity": "sha1-KY1+IjFmD0DAA8LtMUDezz9TCF8="
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+    "clone-deep": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/clone-deep/-/clone-deep-1.0.0.tgz",
+      "integrity": "sha512-hmJRX8x1QOJVV+GUjOBzi6iauhPqc9hIF6xitWRBbiPZOBb6vGo/mDRIK9P74RTKSQK7AE8B0DDWY/vpRrPmQw==",
+      "requires": {
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+        "is-plain-object": "2.0.4",
+        "kind-of": "5.1.0",
+        "shallow-clone": "1.0.0"
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+        }
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@@ -256,6 +552,16 @@
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       "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c="
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+    "collection-visit": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/collection-visit/-/collection-visit-1.0.0.tgz",
+      "integrity": "sha1-S8A3PBZLwykbTTaMgpzxqApZ3KA=",
+      "optional": true,
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@@ -269,7 +575,7 @@
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+      "integrity": "sha1-wSYRB66y8pTr/+ye2eytUppgl+0=",
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@@ -315,6 +621,11 @@
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       "integrity": "sha1-0SG7roYNmZKj1Re6lvVliOR8Z4E="
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+    "component-emitter": {
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+      "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
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@@ -325,6 +636,12 @@
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       "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4="
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+    "copy-descriptor": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/copy-descriptor/-/copy-descriptor-0.1.1.tgz",
+      "integrity": "sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=",
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@@ -341,7 +658,7 @@
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+          "integrity": "sha1-XdnabuOl8wIHdDYpDLcX0/SlTgI=",
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@@ -395,7 +712,7 @@
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@@ -3374,6 +3298,39 @@
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@@ -3451,6 +3408,11 @@
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+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/warning-symbol/-/warning-symbol-0.1.0.tgz",
+      "integrity": "sha1-uzHdEbeg+dZ6su2V9Fe2WCW7rSE="
+    },
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       "resolved": "https://registry.npmjs.org/websocket-driver/-/websocket-driver-0.7.0.tgz",
@@ -3463,7 +3425,7 @@
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+      "integrity": "sha1-XS/yKXcAPsaHpLhwc9+7rBRszyk="
     },
     "whet.extend": {
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@@ -3473,12 +3435,21 @@
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+      "integrity": "sha1-Vx4PGwYEY268DfwhsDObvjE0FxA=",
       "optional": true,
       "requires": {
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       }
     },
+    "window-size": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/window-size/-/window-size-1.1.0.tgz",
+      "integrity": "sha1-O0AtMkTzVWHbLJdhrZ0eUoawei0=",
+      "requires": {
+        "define-property": "1.0.0",
+        "is-number": "3.0.0"
+      }
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",