Use guid instead of id at permalink and in SPV

This changes links from /posts/:id to /posts/:guid where the links are
not clicked very often. ID search is faster than guid search so we can't
change it everywhere, but these links are not very useful for clicking,
but can be used for easier guid look up.

closes #7453

Changelog.md

@@ -2,6 +2,7 @@
 
 ## Refactor
 * Remove rails\_admin [#7440](https://github.com/diaspora/diaspora/pull/7440)
+* Use guid instead of id at permalink and in SPV [#7453](https://github.com/diaspora/diaspora/pull/7453)
 
 ## Bug fixes
 * Make photo upload button hover text translatable [#7429](https://github.com/diaspora/diaspora/pull/7429)

app/assets/templates/single-post-viewer/single-post-content_tpl.jst.hbs

@@ -39,11 +39,11 @@
             {{/if}}
             <span class="post-time">
               {{#if root}}
-                <a href="/posts/{{root.id}}">
+                <a href="/posts/{{root.guid}}">
                   <time datetime="{{root.created_at}}" title="{{localTime root.created_at}}" />
                 </a>
               {{else}}
-                <a href="/posts/{{id}}">
+                <a href="/posts/{{guid}}">
                   <time datetime="{{created_at}}" title="{{localTime created_at}}" />
                 </a>
               {{/if}}
@@ -91,7 +91,7 @@
           </span>
           <div class="post-context">
             <span class="post-time">
-              <a href="/posts/{{id}}">
+              <a href="/posts/{{guid}}">
                 <time datetime="{{created_at}}" title="{{localTime created_at}}" />
               </a>
             </span>

app/assets/templates/stream-element_tpl.jst.hbs

@@ -24,7 +24,7 @@
             <time class="timeago" data-original-title="{{{localTime created_at}}}" datetime="{{created_at}}" />
           </a>
 
-          <a href="/posts/{{id}}" class="permalink" title="{{t "stream.permalink"}}">
+          <a href="/posts/{{guid}}" class="permalink" title="{{t "stream.permalink"}}">
             <i class="entypo-link"></i>
           </a>
         {{/if}}