SVN commit 948683 by gberg:

Rewrite the presence data engine. Benefits of this rewrite include:
- Its much clearer
- It's ready for having services added for sources to allow setting the presence
- It doesn't provide any data in telepathy specific structs, meaning that applets don't need tpqt4 to use it

The applet won't work with it until I've ported that too.

 M  +2 -0      CMakeLists.txt  
 M  +214 -165  presence.cpp  
 M  +16 -16    presence.h