Merge branch 'master'

nativescript-core/utils/mainthread-helper.d.ts

@@ -0,0 +1,10 @@
+/**
+ * Dispatches the passed function for execution on the main thread
+ * @param func The function to execute on the main thread.
+ */
+export function dispatchToMainThread(func: Function);
+
+/**
+ * @returns Boolean value indicating whether the current thread is the main thread
+ */
+export function isMainThread(): boolean