Merge pull request #152 from DBezemer/master

Merge master for M2.7 release
Bump version.php for release and cleanup debug elements
Small fix for frontpage
Bump version for moodle.org triggering
Release 2.7.6
Fix for loading messages when using MSSQL
Release 2.7.6a
Undo edits to these files.
Touch version for 2.7.6a
Sync for release 2.7.6b
Pre-release 2.7.7a
Version 2.7.7
Tweaks to Quiz question bank header.
Fix #272
Fix #273
Tidy up position of form button float
Implement option for #269 enabletrusttext needs to be enabled in order to make this work.
This is a security precaution, preventing XSS and other types of attacks.
Update README.txt for 2.7.8.
#249 In progress.
Fix #284.