Auto-format all files to use consistent tab size of 2.

gulpfile.js

@@ -136,7 +136,7 @@ gulp.task('generatecustomdts', 'Generate dts with no exports', function (done) {
     .pipe(gulp.dest('dist/'));
 });
 
-gulp.task('test:spec', 'Runs spec tests', function(done) {
+gulp.task('test:spec', 'Runs spec tests', function (done) {
   new karma.Server.start({
     configFile: __dirname + '/karma.conf.js',
     singleRun: argv.watch ? false : true,