Merge pull request #214 from mouse-reeve/user-permissions

Adds user permissions and groups

bookwyrm/templates/book.html

@@ -9,7 +9,7 @@
             <span>{% include 'snippets/book_titleby.html' with book=book %}</span>
         </h2>
 
-        {% if request.user.is_authenticated %}
+        {% if request.user.is_authenticated and perms.bookwyrm.edit_book %}
         <div class="level-right">
             <a href="{{ book.id }}/edit">edit
                 <span class="icon icon-pencil">

bookwyrm/templates/layout.html

@@ -70,12 +70,14 @@
                     <a href="/user-edit" class="navbar-item">
                         Settings
                     </a>
-                    <a href="/invite" class="navbar-item">
-                        Invites
-                    </a>
                     <a href="/import" class="navbar-item">
                         Import books
                     </a>
+                    {% if perms.bookwyrm.create_invites %}
+                    <a href="/invite" class="navbar-item">
+                        Invites
+                    </a>
+                    {% endif %}
                     <hr class="navbar-divider">
                     <a href="/logout" class="navbar-item">
                         Log out