chore(typings): add es6 and jasmine typings

As of beta.6, angular2 no longer ships es6-shim or jasmine typings, so
we provide them ourselves.

gulpfile.js

@@ -238,6 +238,7 @@ gulp.task('transpile', function(){
 
 function tsCompile(options, cacheName){
   return gulp.src([
+      'typings/main.d.ts',
       'ionic/**/*.ts',
       '!ionic/**/*.d.ts',
       '!ionic/components/*/test/**/*',