Add Horde_Mongo_Exception
Bump minimum version, catch Exceptions.
Catch Horde_Mongo_Exception
Catch Horde_Mongo_Exception
Revert "Add Horde_Mongo_Exception"

This reverts commit 591ab423f6d9766b5b30d1f94d735cde9589ab19.

This change is BC breaking, and needs to wait until Horde_Mongo 2.0.
Revert "Bump minimum version, catch Exceptions."

This reverts commit 395fdc4a69f2cb0f228b975ebc54757624c2266e.
Revert "Catch Horde_Mongo_Exception"

This reverts commit facf7da6efbc0cbab8221f7016159efdeeaf80f0.
Revert "Catch Horde_Mongo_Exception"

This reverts commit eaa3990898b6770e6a4f1c87b110ea90f8995d7c.
Has been named backends.php for long time.
Empty buffer to not leak into the output.
Fix enum value descriptions. Bug: 12839
Catch Exception
phpdoc
version.php files were removed in H4
Use Horde_Registry#appInit() in horde-translation

Otherwise, this fails when retrieving version information for
applications that use $injector or $registry in their _bootstrap()
methods (i.e. IMP 6.2).

I'm assuming the only reason we haven't updated to using appInit() is
because it simply wasn't needed before now - the application just worked.
(AFAICT, horde-translation previouslt required a working version of Horde
installed, so this doesn't change anything).
Merge branch 'master' into nag_4_2