* [Code Cleanup/Mail/Setup] The cardinality tester on ticket masks will now work with numbers of any length (including those bigger than PHP_MAX_INT).
* [Social] Updated Cerb's Facebook URL.
* [CHD-3103] [Mail/Filtering] Added a 'Sender is worker' condition to Virtual Attendant behavior on the Mail Filtering event.
* [CHD-3106] [Setup/Groups] FIXED: Admins can't see the 'groups' menu in the global navigation bar unless they're the manager of at least one group.
* [CHD-3105] [Mail] Fixed an issue where the personalized 'From:' name sometimes wasn't populated on outgoing messages when using snippet placeholders.
* [Setup/CSS] Fixed a minor CSS issue in recent Chrome versions where the 'disabled' overlay banner on plugin icons wasn't properly aligned.
[Code Cleanup] Whitespace fixes
* [CHD-3124] [Mail/Message/Worklists] Message worklists may now be filtered by ticket status.  The status field can also be used in quick search and subtotals.
* [CHD-3126] [Worklists/Ticket/Subtotals] FIXED: When subtotaling a ticket worklist by Owner, clicking on '(none)' returns an error instead of filtering the list to unassigned items.
* [CHD-3129] [Knowledgebase] Fixed an issue when saving knowledgebase articles where minor latency could cause the save to be aborted and the page to reload with the previous content.  This happened most often when using Chrome.
* [CHD-3131] [Opportunities] FIXED: Deleting an opportunity from peek doesn't reload the underlying worklist.
* [CHD-3133] [Subtotals/Custom Fields] Subtotals can now be used on all 'url' and 'number' based custom fields.
6.1.2-dev checkpoint
* [CHD-3111] [Context Links] Added some extra error checking to make sure context links are only being created for valid, non-zero IDs.
* [CHD-3125] [Support Center] FIXED: The Support Center doesn't wrap long lines in Ticket History messages.
* [CHD-3130] [Snippets/Virtual Attendants] Added an MD5 modifier to snippet placeholders. It can be used like {{token|md5}} to create a hash based on the placeholder value.  This is especially useful in Virtual Attendant behavior.
[Code Cleanup]
* [CHD-3128] [Virtual Attendants] FIXED: Workers will no longer receive two copies of a relayed message when they an owner and a watcher on the same conversation.

Signed-off-by: Jeff Standen <jeff@webgroupmedia.com>
6.1.2 checkpoint