remove empty style tags
use more generic regex to allow possible attributes in empty style tag
add unittests
add another unittest
Test.
test
Test.
Remove test file.
Improved HTMLUtils::ToAscii, thanks to Renée Bäcker.

Merge branch 'reneeb_htmlutils_avoid_backtracking_to_ascii' of github.com:reneeb/otrs

Conflicts:
	scripts/test/HTMLUtils/ToAscii.t
Fixed: PostMasterMailbox.pl hangs parsing mails (bug#10532).
Fixed: Service selection in GA Ticket Action allows multi select (bug#10578).
Squashed commit of the following:

commit 0b41aede7b331c3d9fd42c114a11cfbcfd0def36
Author: s7design <otrs@s7designcreative.com>
Date:   Thu Jun 19 14:00:15 2014 +0200

    multiselect change value to "0" in AdminGenericAgent

    http://bugs.otrs.org/show_bug.cgi?id=10578

Conflicts:
	CHANGES.md
	Kernel/Modules/AdminGenericAgent.pm

Conflicts:
	CHANGES.md
Fixed: "Previous Owner" don't use the FirstnameLastnameOrder configuration (bug#10559).

Conflicts:
	CHANGES.md
	Kernel/Modules/AgentTicketMove.pm
Added edit and delete icon fonts to process management canvas elements, thanks to Nils Leideck.
Changed customer ticket compose form width analogous to process ticket form, thanks to Nils Leideck.
Fixed bug#10522 - HTTP 500 error when uploading attachments to ticket on Windows
Fixed CHANGES.
Squashed commit of the following:

commit c8644ef9187b96bec26d9831e833af0498c76afb
Author: s7design <otrs@s7designcreative.com>
Date:   Mon Jun 23 14:28:32 2014 +0200

    Cleaned code for Previous Owner

Conflicts:
	Kernel/Modules/AgentTicketMove.pm
Fixed: ProcessManagement: ConditionLinking OR in a Transition doesn't work (bug#10246).
Fixed: OTRS, MySQL, utf8 charset and non-BMP characters problem (bug#10396, thanks to ib.pl).
Moved Encode to the proper file.