And other minor things.

Also added more debug output to help identify the db path issue.

Updated README accordingly.
And the makefile, of course.
Had to add the jabber protocol plugin headers to this source tree.

Bundle is now published at every start, not only with the devicelist.
Removed unnecessary includes.
Exchanged includes that are dependent on a path for a compiler argument.

Fixed the blacklist using the full instead of bare JID.
Added some warning messages and removed unnecessary ones.
All messages are now displayed without the final line break.