(setWorkingCopy(), KDirWatch for cvsservicerc, etc...)
* removed a lot of code duplication in CvsService's methods
* added new add() and commit() method to CvsService
   TODO: need documentation!
* Methods with a file list parameter now take QStringList instead of
   QString. So the caller doesn't have to worry about proper quoting.

svn path=/trunk/kdesdk/cervisia/; revision=199939