Renamed link names to open customer and customer user tickets.
Renamed Customer ID to Customer in CIC search.
Fixed: When using the search feature of the tree selection overlay, one is not able to expand subtrees of matching entries (bug#10405).
Small code style improvements.
Improved quoting of title attibutes.
Improved quoting of for attibute.
Don't preinstall Support package.
Removed no longer needed support for DB listeners (Fred).
Merge branch 'moreconsitentcustomernaming-nilei-master' of github.com:nilei/otrs
Fixed an issue where the spellcheck warning would be shown even if spellchecking is disabled and/or the richtext field has no content (bug#10208).
Added support for Service Center and Support Data.

Conflicts:
	Kernel/Output/HTML/Standard/AdminRegistration.dtl
Changed dtls to tt.
Tidied file.
Merge remote-tracking branch 'upstream/master'