- Added the --debug parameter to x2goclient.

- Refactored the debugging of "x2goDebug" to contain __FILE__:__LINE__ in order to let users provide more useful informations.

- Added x2goInfof(NUM), x2goWarningf(NUM), x2goErrorf(NUM) to enable parsable outputs for the client.

- Added the show_printouts.sh file to be used for looking into sourcefiles info, warning and error messages. pure convenience here.