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
Fixed: %A is not correctly substituted in Language::Time() (bug#10145).
Fixed bug#10111 - Management Dashboard: X-Axis element labels may overlap.
Added functionality to unlock just one single ticket in otrs.UnlockTickets.pl,
thanks to Martin Gross @ rtt.ag.

Merge branch 'master' of https://github.com/rttag/otrs
Exposing TicketCloseTimeNewerDate and TicketCloseTimeOlderDate to search URL.
Fixed: Error messages on recieving mailer daemons (bug#10088).

Merge branch 'master' of https://github.com/AddOnline/otrs
Removed unused variable.
Merge branch 'article-storage-optimization' of https://github.com/moritz/otrs
Fixed bug#10113 - Management dashboard setting doesn't show up when agent only has RO on stats.
Code cleanup.
Handle passed Headers for UserAgent
fix test failure
Make it possible to pass HTTP headers to WebUserAgent, thanks to Renée Bäcker.
Tidied.
Merge branch 'reneeb_fix_uninitialized_dashboardqueueoverview' of https://github.com/reneeb/otrs
Dynmic to Dynamic