This fixes at least three instances where we did not check whether user is even allowed to report or delete a crash.
Also fixes a few cases when root might inadvertently act on (e.g. delete) mote than one crash.
Renamed FILENAME_UID to CD_UID - makes more sense this way. Added COL_INFORMALL and CD_INFORMALL. Nuked UID == -1 hacks. Renamed getReport() to start_job on Python side. Dropped a few unused parameters from server -> client dbus signals. Fixed CLI's way of reverencing crashes (see updated help text).
Run-tested (GUI and CLI).
Please review.
(Compressed to get under ml size limit)