A lot of changes to adapt at the new Moodle 2.7.
-Added new functionality: the possibility to change the name of concat vars (Isn't mandatory).
Another bugs fixed.
Refactoring and some visual change.
Bug fixed:
-Now Penalty can be set as 0.
 Added new visual style when a question text is shown
Merge pull request #1 from fontinixxl/moodle27

Moodle27_merge