remove comments at the first place to avoid to much work for the regex engine (ToAscii)
Fixed: OutputFilterText AutoLink CVE (bug#10521).
Squashed commit of the following:

commit 9e53d226b1a5ed5c5949a3264886300bda066e3c
Author: s7design <otrs@s7designcreative.com>
Date:   Tue Jun 3 01:58:01 2014 +0200

    http://bugs.otrs.org/show_bug.cgi?id=10521

    Changed regex for CVE, added test_mail for it
Merge branch 'reneeb_htmlutils_remove_htmlcomments' of github.com:reneeb/otrs
Fixed bug#10549 - SelectAllCheckboxes doesn't work as expected.
Updated CHANGES file.
Added missing translation.

Conflicts:
	Kernel/Output/HTML/Standard/AAABase.dtl
Added instructions for ForeignDB param.
Added explanation for -R param.
Followup fix for bug#10399 - Columns Settings lost after search.
Fixed bug#10508 - (Agent|Customer)TicketProcess javascript errors when uploading attachments/having server errors.
Tidied.
Updated Brazilian Portugese translation, thanks to Murilo Moreira de Oliveira.

Conflicts:
	Kernel/Language/pt_BR.pm
Fixed bug#10562 - Inconsistent displaying of 'CustomerID' value, thanks to S7Design.
Fixed bug# 10524 - Internal Dynamic Fields in Activity Dialog.
Updated changes file.
Tidied.
Changed start event and activity background color; added transparency and thinner border for start event, thanks to Nils Leideck.