Fixes display and fonts (#85)

* change simulator svg

* change radio image

* Remove google fonts cdn

* change color of 'advanced' button

* font fix

* font fix 2

* display fix

* change fullsceen simulator bg

* Continuous servo

* handle continuous state

* adding shims

* update rendering for continuous servos

* fixing sim

* fix sig

* typo

* fix sim

* bump pxt

* bump pxt

* rerun travis

sim/state/edgeconnector.ts

@@ -81,6 +81,13 @@ namespace pxsim.pins {
         pin.servoAngle = value;
     }
 
+    export function servoSetContinuous(pinId: number, value: boolean) {
+        let pin = getPin(pinId);
+        if (!pin) return;
+
+        pin.servoSetContinuous(value);
+    }
+
     export function servoSetPulse(pinId: number, micros: number) {
         let pin = getPin(pinId);
         if (!pin) return;