Merge pull request #1944 from leviding/fix-gitment

fix #1943 fix the bug of gitment

Author: ivan-nginx

layout/_third-party/comments/gitment.swig

@@ -23,7 +23,7 @@
       <script type="text/javascript">
       function renderGitment(){
         var gitment = new {{CommentsClass}}({
-            id: document.location.href, 
+            id: window.location.pathname, 
             owner: '{{ theme.gitment.github_user }}',
             repo: '{{ theme.gitment.github_repo }}',
             {% if theme.gitment.mint %}