Git commits in Moodle 2.5.6 by Tim Lock

commit 9d399ce4da938572d58bb0460aec9f6fe14aa1f6
Author: Tim Lock <tim.lock@netspot.com.au>
Date:   Wed, 09 Apr 2014 11:43:24 +0800
Tag:    v2.5.6

MDL-45012: Enable support for wma files within tinymce Moodle Media plugin

commit d747a1d9aa740ac3f9f1158407ae314dc94426c5
Author: Tim Lock <tim.lock@netspot.com.au>
Date:   Tue, 18 Mar 2014 08:38:33 +0800
Tag:    v2.5.6

MDL-44669: mod/assign: fix batchoperations JS when using select all checkboxes.

commit 50e92d657b380b9ecc899434a6a08b90477eb37a
Author: Tim Lock <tim.lock@netspot.com.au>
Date:   Wed, 12 Mar 2014 10:34:48 +0800
Tag:    v2.5.6

MDL-44575: Prevent cron from sending feedback notifications when assignments are hidden in the gradebook

commit fa61c138068a9bad674df8f8bb1a9b47d57e48b0
Author: Tim Lock <tim.lock@netspot.com.au>
Date:   Wed, 12 Mar 2014 09:11:37 +0800
Tag:    v2.5.6

MDL-44573: Remove HTML tags in outputs column in offline grading worksheet

commit a2e726382a6b575353e40905b68e8a88816cc665
Author: Tim Lock <tim.lock@netspot.com.au>
Date:   Fri, 07 Mar 2014 11:47:02 +0800
Tag:    v2.5.6

MDL-44499: Fix PHP warning in upload_manager class