SUP-1788, Join button on /register shows processing when button not clicked

-- Removed busy message for validations

Author: vikasrohit

app/account/register/register.controller.js

@@ -9,6 +9,7 @@
     $log = $log.getInstance("RegisterController");
     $log.debug("-init");
     var vm = this;
+    vm.registering = false;
     // prepares utm params, if available
     var utm = {
       source : $stateParams && $stateParams.utm_source ? $stateParams.utm_source : '',
@@ -39,6 +40,7 @@
     };
 
     vm.register = function() {
+      vm.registering = true;
       var userInfo = {
         handle: vm.username,
         firstName: vm.firstname,
@@ -78,12 +80,14 @@
       $log.debug('attempting to register user');
       TcAuthService.register(body)
       .then(function(data) {
+        vm.registering = false;
         $log.debug('registered successfully');
 
         // In the future, go to dashboard
         $state.go('registeredSuccessfully');
       })
       .catch(function(err) {
+        vm.registering = false;
         $log.error('Error in registering new user: ', err);
       });
     };

app/account/register/register.jade

@@ -81,9 +81,7 @@
 
         p(ng-class="{ 'has-symbol-or-number': (vm.registerForm.password.$dirty && !vm.registerForm.password.$error.hasSymbolOrNumber) }") At least one number or symbol
 
-    button(type="submit", busy, busy-disabled="true", ng-disabled="vm.registerForm.$invalid", ng-class="{'enabled-button': vm.registerForm.$valid}") Join
-      busy-message
-        i.fa.fa-spinner(ng-bind="vm.busyMessage")
+    button(type="submit", tc-busy-button, tc-busy-when="vm.registering", ng-disabled="vm.registerForm.$invalid", ng-class="{'enabled-button': vm.registerForm.$valid}") Join
 
   section.terms
     p By clicking "Join," you agree to Topcoder's #[a(href="http://www.topcoder.com/community/how-it-works/terms/", target="_blank") Terms of Service] and #[a(href="http://www.topcoder.com/community/how-it-works/privacy-policy/", target="_blank") Privacy Policy]