Implementing Permalinks and jumping to post from search. Performance

improvements.

web/templates/head.html

@@ -47,6 +47,7 @@
         window.mm_config = {{ .ClientCfg }};
         window.mm_team = {{ .Team }};
         window.mm_user = {{ .User }};
+        window.mm_channel = {{ .Channel }};
 
         if ({{.SessionTokenIndex}} >= 0) {
             window.mm_session_token_index = {{.SessionTokenIndex}};