Added Hebrew translation file, thanks to Amir Elion.

Conflicts:
	CHANGES.md
Fixed UT.
Tidied: always use next/last with label.
Tidied: always use next/last with label.
Tidied: always use next/last with label.
Tidied: always use next/last with label.
Tidied: always use next/last with label.
Removed unneeded comments.
Tidied: always use next/last with label.
Code cleanup.
Fixed missing variable substitution.
Code cleanup.
Tidied file.
Code cleanup.
Fixed: Customer user is automatically added to Cc at response for email-internal in AgentTicketCompose (bug#10008).
Merge remote-tracking branch 'upstream/master' into otrs-master