Replace jquery-ui-based colour picker with a bootstrap one

frontend/app/ui/ui.js

@@ -4,16 +4,16 @@
 		return {
 			restrict: 'A',
 			link: function(scope, element, attrs) {
-				$(element).spinner({
-					spin: function(event, ui) {
-						setTimeout(function() {
-							scope.$apply(function() {
-								scope._spinnerVal = element.val();
-								$parse(attrs.ngModel + "=_spinnerVal")(scope);
-								delete scope._spinnerVal;
-							});
-						}, 0);
-					}
+				$(element).TouchSpin({
+					min: 1
+				}).on('change', function() {
+					setTimeout(function() {
+						scope.$apply(function() {
+							scope._spinnerVal = element.val();
+							$parse(attrs.ngModel + "=_spinnerVal")(scope);
+							delete scope._spinnerVal;
+						});
+					}, 0);
 				});
 			}
 		}

frontend/assets/libs/jquery.ui.spinner-1.10.4.min.css

@@ -1,5 +0,0 @@
-/*! jQuery UI - v1.10.4 - 2014-04-13
-* http://jqueryui.com
-* Copyright 2014 jQuery Foundation and other contributors; Licensed MIT */
-
-.ui-spinner{position:relative;display:inline-block;overflow:hidden;padding:0;vertical-align:middle}.ui-spinner-input{border:none;background:none;color:inherit;padding:0;margin:.2em 0;vertical-align:middle;margin-left:.4em;margin-right:22px}.ui-spinner-button{width:16px;height:50%;font-size:.5em;padding:0;margin:0;text-align:center;position:absolute;cursor:default;display:block;overflow:hidden;right:0}.ui-spinner a.ui-spinner-button{border-top:none;border-bottom:none;border-right:none}.ui-spinner .ui-icon{position:absolute;margin-top:-8px;top:50%;left:0}.ui-spinner-up{top:0}.ui-spinner-down{bottom:0}.ui-spinner .ui-icon-triangle-1-s{background-position:-65px -16px}

frontend/bower.json

@@ -22,7 +22,8 @@
     "FileSaver": "https://raw.githubusercontent.com/eligrey/FileSaver.js/master/FileSaver.js",
     "blob": "*",
     "angular-bootstrap": "^2.1.4",
-    "bootstrap": "^3.3.7"
+    "bootstrap": "^3.3.7",
+    "bootstrap-touchspin": "^3.1.2"
   },
   "overrides": {
     "bootstrap": {