build(js): fix select.js build order

Resolves issue where templates were occasionally prepended to select.js
causing problems when attempting to use the file (eg. when running unit
tests).

Switches from es-merge to streamqueue for combining select.js source
streams.

Author: user378230

gulpfile.js

@@ -1,7 +1,7 @@
 var fs = require('fs');
 var del = require('del');
 var gulp = require('gulp');
-var es = require('event-stream');
+var streamqueue = require('streamqueue');
 var karma = require('karma').server;
 var $ = require('gulp-load-plugins')();
 var runSequence = require('run-sequence');
@@ -56,7 +56,7 @@ gulp.task('scripts', ['clean'], function() {
       .pipe($.jshint.reporter('fail'));
   };
 
-  return es.merge(buildLib(), buildTemplates())
+  return streamqueue({objectMode: true }, buildLib(), buildTemplates())
     .pipe($.plumber({
       errorHandler: handleError
     }))

package.json

@@ -19,12 +19,12 @@
     "gulp": "^3.9.1",
     "gulp-angular-templatecache": "^1.8.0",
     "gulp-bump": "^1.0.0",
-    "gulp-conventional-changelog": "^0.7.0",
     "gulp-concat": "^2.6.0",
+    "gulp-conventional-changelog": "^0.7.0",
     "gulp-filenames": "^2.0.0",
+    "gulp-footer": "^1.0.5",
     "gulp-git": "^1.4.0",
     "gulp-header": "^1.7.1",
-    "gulp-footer": "^1.0.5",
     "gulp-jshint": "^2.0.0",
     "gulp-load-plugins": "^1.1.0",
     "gulp-minify-css": "^1.2.4",
@@ -40,12 +40,13 @@
     "jshint-stylish": "~0.3.0",
     "karma": "^0.12.16",
     "karma-chrome-launcher": "^0.1.3",
+    "karma-coverage": "~0.2",
     "karma-firefox-launcher": "~0.1",
     "karma-jasmine": "~0.2",
     "karma-ng-html2js-preprocessor": "^0.1.0",
     "karma-phantomjs-launcher": "~0.1.4",
-    "karma-coverage": "~0.2",
     "run-sequence": "^1.1.5",
+    "streamqueue": "^1.1.1",
     "title-case": "^1.1.2"
   },
   "scripts": {