Added possibility to execute generic agent jobs for configured ticket events.
Improved wording on screen.
Fixed event table.
Improved job run behaviour in GenericAgent.
After saving a job, you now get back to the main screen.
With 'run job now' you get to the run screen, see the list of tickets and can execute the job.
Restored code accidentially deleted from master.
Added central list of events in system.
Use it in GenericAgent.
Fixed issue when try to add an even in GAt when the list of events is empty.
Make setting descriptions more generic (in preparation  for merge into master).
Added small visual improvements.
Fixed indentation.
Tidied files.
Removed special CSS in favor of generic CSS.
Fixed display of type of existing events.
Merge branch 'feature-eventbasedticketactions-mg-master'

Conflicts:
	CHANGES.md
	Kernel/Modules/AdminGenericAgent.pm
	scripts/DBUpdate-to-3.3.pl
Merge branch 'master' of git.otrs.com:otrs/otrs