Move some classes to API

src/main/java/com/dmdirc/ui/messages/BackBuffer.java → api/src/main/java/com/dmdirc/ui/messages/BackBuffer.java

 
     Document getDocument();
 
-    Styliser getStyliser();
+    StyleApplier getStyliser();
 
 }
-

src/main/java/com/dmdirc/interfaces/Connection.java

      */
     ServerState getState();
 
-    /**
-     * Retrieves the status object for this server. Effecting state transitions on the object
-     * returned by this method will almost certainly cause problems.
-     *
-     * @since 0.6.3m1
-     * @return This server's status object.
-     */
-    ServerStatus getStatus();
-
     /**
      * Determines whether the server knows of the specified query.
      *