Standardized on fa-link icon for Link instead of external-link, which generally…

Standardized on fa-link icon for Link instead of external-link, which generally means Open In New Window or Go Offsite

public/app/features/dashboard/partials/shareModal.html

@@ -89,7 +89,7 @@
 
 <script type="text/ng-template" id="shareLink.html">
 	<div class="share-modal-big-icon">
-		<i class="fa fa-external-link"></i>
+		<i class="fa fa-link"></i>
 	</div>
 
 	<div ng-include src="'shareLinkOptions.html'"></div>

public/app/features/panel/panel_menu.js

@@ -123,7 +123,7 @@ function (angular, $, _) {
             }
 
             var menuTemplate;
-            if ($(e.target).hasClass('fa-external-link')) {
+            if ($(e.target).hasClass('fa-link')) {
               menuTemplate = createExternalLinkMenu($scope);
             } else {
               menuTemplate = createMenuTemplate($scope);