Squashed commit of the following:

commit a0107a61ecb72baa70076615006a76ceb4a323c5
Author: Marc Bonsels <marc.bonsels@otrs.com>
Date:   Mon Jul 8 13:52:19 2013 +0200

    Fixed bug#8380: Middle name not displayed in AdminCustomerUser.
Made Comment field on ACLs non-mandatory.
Removed obsolete $VERSION and $Revision variables.
Fixed typo in perldoc.
Fixed bug#5920 - Search restriction for dates is not displayed in customer interface.
Merge branch 'master' of git.otrs.com:otrs/otrs
Fixed bug#9577 - Engine translate date to dado from english to pt_BR.
Fixed bug#9577 - Engine translate date to dado from english to pt_BR.
Fixed bug#7359 - Setting pending states via generic agent does not set pending time.
Dynamic Fields of type Date no longer have timestamps in notifications.

Previously the Dynamic Fields of type Date had 00:00:00 timestamps
when used in notifications.
Also, Dynamic Fields of type Date had seconds in the notifications
but these were always '00' so I stripped them off too.
Modified cache key name for ServiceList method.
Fixed bug#9579 - SOAP Serializer used in Kernel/GenericInterface/Transport/HTTP/SOAP.pm does not correctly set namespace (Thanks to Jonathan Sartin).
QA Followup fix for bug#9573 - Date and DateTime dynamic fields not considered in GenericAgent Jobs.
Removed obsolete blink regex.
Removed warning, added comment.
Fixed bug#9577 - Engine translate date to dado from english to pt_BR.
Merge branch 'master' into bugfix_9577
Follow-up fix for bug#5920 - Make sure strings are being translated correctly.
Merge branch 'master' of git.otrs.com:otrs/otrs
Fixed bug#[9584](http://bugs.otrs.org/show_bug.cgi?id=9584) - No server side validation of To/Subject/Body in merge mask.