AS#101110714058011, User cannot add custom URL to profile

-- Increased supported length to 15 from 3 for TLD

Author: vikasrohit

app/directives/external-account/external-web-links.directive.js

@@ -25,7 +25,7 @@ import angular from 'angular'
       $log = $log.getInstance('ExternalWebLinkCtrl')
       $scope.addingWebLink = false
       $scope.errorMessage = null
-      $scope.urlRegEx = /^(http(s?):\/\/)?(www\.)?[a-zA-Z0-9\.\-\_]+(\.[a-zA-Z]{2,3})+(\/[a-zA-Z0-9\_\-\s\.\/\?\%\#\&\=]*)?$/
+      $scope.urlRegEx = /^(http(s?):\/\/)?(www\.)?[a-zA-Z0-9\.\-\_]+(\.[a-zA-Z]{2,15})+(\/[a-zA-Z0-9\_\-\s\.\/\?\%\#\&\=]*)?$/
 
       $scope.addWebLink = function() {
         $log.debug('URL: ' + $scope.url)