Support admin commands that respect user permissions

James Moger

2014-03-14 2331e7936c27e32b7d6d251b3637efc0e1184a81

 src/main/java/com/gitblit/transport/ssh/NullKeyManager.java

@@ -63,4 +63,9 @@
   public boolean removeKey(String username, String data) {
      return false;
   }

   @Override
   public boolean removeAllKeys(String username) {
      return false;
   }
}