Adding functionality to unlock single Ticket
No message when no auto response destination.

When notication is disable by NoAutoRegExp for example
@AutoReplyAddresses can be empty. No message will be sent but an article
will be create.

HereAutoReplyAddresses is test for empty value before sending email
preventing any new article to be created when no AutoReplyAddresses
exist.

May be this feature should be done in ArticleSend. I don't know.
Optimize various operations in the ArticleStorage backends

this disables the fallback from DB to FS backend, and the other way round.
Only enabled again in TicketArticleStorageSwitch
config option Ticket::StorageModule::CheckAllBackends

for setups where not all attachements are either in the database or the file system
check for definedness and use default values to avoid unitialized warnings
Updated copyright year.
Revert "Fixed bug#10079 - Cannot operate OTRS on IE7 because of JavaScript error."

This reverts commit cad2633eef3cee273ab6a1e50afc0e7db639c594.

Conflicts:
	CHANGES.md
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.