Evolution 3.12 branches created

[Matthew Barnes <mbarnes redhat com>]

Version 3.12 of Evolution is released and new branches have been created
for the relevant modules.

As we are no longer on GNOME's release schedule, we are also no longer
using "gnome" branch names.  The new branch names are:

   evolution-3-12
   evolution-data-server-3-12
   evolution-ews-3-12
   evolution-mapi-3-12

These branches will remain active for the remainder of 2014 and into
2015, until Evolution 3.14 is released next spring.

Matthew Barnes