Improved documentation to describe current behaviour. Added tests.
Simplified code. Removed unneeded variable. Added time some zone based tests.
Removed dead code and simplified code.
Small improvements.
Improved variable names
Simplified logic, no semantic changes.
Added empty option for Ticket Types.

Fixed bug#9191 - When ticket types are restricted, first available
type is selected in AgentTicketActionCommon-based screens.
Fixed typo in comment.
Added missing qunit files.
Fixed Bug 4716 "Logout page should use ProductName instead of 'OTRS'"
Merge branch 'rs_4716'
Improved test cases.
Fixed bug#9249 - Warning not to use internal articles in customer frontend
    shown on agent interface also.
Fixed bug#4716 - Logout page should use ProductName instead of 'OTRS'.
Fixed bug#9215 - Process import always creates new process. Now there is a new option "overwrite existing entities" for the process import.
Add missing CHANGES entry.
Updated Czech translation, thanks to Peter Pruchnerovic.
Updated Norwegian translation, thanks to Espen Stefansen.
Fixed bug#9255 - Email is sent to customer, when agents email address is similar
    but not identical.
Fixed bug#9252 - Type of linking displayed wrong and also updated wrong in transitions.