Ported to OTRS 4.
Ported icon to OTRS 4.
Code cleanup.
Created tt files from dtls
Switched scripts/test/TimeAccounting.t to ObjectManager.
Switched var/packagesetup/TimeAccounting.pm
Switched Kernel/System/Stats/Dynamic/TimeAccounting.pm to ObjectManager.
Added UserID parameter to functions that requires it.
Switched Kernel/System/TimeAccounting.pm to ObjectManaget.

-Changed API, "UserID" parameter is now required for:
WorkingUnitsCompletnessCheck()
WorkingUnitsGet()
WorkingUnitsInsert()
WorkingUnitsDelete()
LastProjectOfUser()
Added tt files to file list, commented dtls.