Two fixes related to occupants toggling

* Empty chat area doesn't resize when hiding occupants.
* Properly change icon when toggling occupants

css/converse.css

@@ -2004,9 +2004,9 @@
         #conversejs .chatroom .box-flyout .chatroom-body .chat-area .chat-content {
           padding: 0 0.5em 0 0.5em; }
         #conversejs .chatroom .box-flyout .chatroom-body .chat-area.full {
-          max-width: 100%; }
+          min-width: 100%; }
           #conversejs .chatroom .box-flyout .chatroom-body .chat-area.full .new-msgs-indicator {
-            max-width: 100%; }
+            min-width: 100%; }
       #conversejs .chatroom .box-flyout .chatroom-body .mentioned {
         font-weight: bold; }
       #conversejs .chatroom .box-flyout .chatroom-body .chat-msg-room {

sass/_chatrooms.scss

@@ -59,9 +59,9 @@
                         padding: 0 0.5em 0 0.5em;
                     }
                     &.full {
-                        max-width: 100%;
+                        min-width: 100%;
                         .new-msgs-indicator {
-                            max-width: 100%;
+                            min-width: 100%;
                         }
                     }
                 }

src/converse-muc.js

@@ -263,16 +263,15 @@
                         // Bit of a hack, to make sure that the sidebar's state doesn't change
                         this.model.set({hidden_occupants: !this.model.get('hidden_occupants')});
                     }
-                    var $el = this.$('.icon-hide-users');
                     if (!this.model.get('hidden_occupants')) {
                         this.model.save({hidden_occupants: true});
-                        $el.removeClass('icon-hide-users').addClass('icon-show-users');
+                        this.$('.icon-hide-users').removeClass('icon-hide-users').addClass('icon-show-users');
                         this.$('.occupants').addClass('hidden');
                         this.$('.chat-area').addClass('full');
                         this.scrollDown();
                     } else {
                         this.model.save({hidden_occupants: false});
-                        $el.removeClass('icon-show-users').addClass('icon-hide-users');
+                        this.$('.icon-show-users').removeClass('icon-show-users').addClass('icon-hide-users');
                         this.$('.chat-area').removeClass('full');
                         this.$('div.occupants').removeClass('hidden');
                         this.scrollDown();