Add the question index list

The question index list is now shown once you start a test, it displays
whether you answered correctly, incorrectly or the question wasn't
answered.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	angular_webApp/src/app/practiceGame/custom-practice/customPractice.tpl.html
Add constants Module
Move all the url's as a constants.
Add Timing validation
Add tag resources Validation.
Add new copy path
Merge pull request #20 from mlopez-firstfactory/master

Add the question index list
Add validation to question statistics section.
Add new constant module.
hide next question button when is only a question.
Merge pull request #51 from joanrm20/master

Maua client new features