build(jshint): save store temp compiled file

Previously if jshint failed the compiled file was also lost resulting
in difficulty determining exact line numbers causing errors.

Now saves the file to gitignore-d directory ./temp

Author: user378230

.gitignore

@@ -1,5 +1,6 @@
 /bower_components
 /node_modules
+/temp
 /.idea
 /.tmp
 .DS_Store

gulpfile.js

@@ -28,7 +28,7 @@ gulp.task('watch', ['build','karma-watch'], function() {
 });
 
 gulp.task('clean', function(cb) {
-  del(['dist'], cb);
+  del(['dist', 'temp'], cb);
 });
 
 gulp.task('scripts', ['clean'], function() {
@@ -51,6 +51,7 @@ gulp.task('scripts', ['clean'], function() {
       .pipe($.concat('select_without_templates.js'))
       .pipe($.header('(function () { \n"use strict";\n'))
       .pipe($.footer('\n}());'))
+      .pipe(gulp.dest('temp'))
       .pipe($.jshint())
       .pipe($.jshint.reporter('jshint-stylish'))
       .pipe($.jshint.reporter('fail'));