Refactoring Android project-level and platform scripts to use Q.js

This eliminates the use of shelljs.exec's sync mode, which is the source
of the filehandle leaks that can cause EMFILE on OSX, and are
CPU-intensive everywhere.

Tested locally, needs poking before it gets released.

bin/node_modules/q/queue.js

@@ -0,0 +1,35 @@
+
+var Q = require("./q");
+
+module.exports = Queue;
+function Queue() {
+    var ends = Q.defer();
+    var closed = Q.defer();
+    return {
+        put: function (value) {
+            var next = Q.defer();
+            ends.resolve({
+                head: value,
+                tail: next.promise
+            });
+            ends.resolve = next.resolve;
+        },
+        get: function () {
+            var result = ends.promise.get("head");
+            ends.promise = ends.promise.get("tail");
+            return result.fail(function (error) {
+                closed.resolve(error);
+                throw error;
+            });
+        },
+        closed: closed.promise,
+        close: function (error) {
+            error = error || new Error("Can't get value from closed queue");
+            var end = {head: Q.reject(error)};
+            end.tail = end;
+            ends.resolve(end);
+            return closed.promise;
+        }
+    };
+}
+