* When you receive a message from a KMessage, and reply to it,
it will automatically reply as KMessage, too.
* This allows to communicate with BLoopers from within the kernel
or libroot.so.
* Removed r5_message.cpp and dano_message.cpp accordingly
* Also moved out KMessage handling from Message.cpp to MessageAdapter.cpp
* Fixed some minor style issues in Message.cpp
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@21514 a95241bf-73f2-0310-859d-f6bbb57e9c96