Add validation in order to shown question analytics just for gre,sat,act and gmat.
Merge pull request #23 from mlopez-firstfactory/master

Implement Jeff's feedback
Add analytics validation on question view.
Take out question list component.
Hide some practice elements while practice content load.
Merge pull request #24 from mlopez-firstfactory/master

Create random loading message generator
Create and integrate new directive for splash messages.
Add new style for progress bar loading messages.
*Fix user Run Out of questions method.
Rename Messages service to a more specific name(splash messages)
Move Splash Messages services from application.services to practice.services.
Add responsive classes to numeral loading directive

*It was missing a couple of parameters.
Merge pull request #25 from mlopez-firstfactory/master

Fix fadingText, we can't pass values directly
Add display “Custom Practice” on the left nav menu above “Group practice”.
Add display “Take a Full Length Test” on the left nav menu below “Group Practice”
Add responsive classes for loading message
Merge branch 'master' of https://github.com/joanrm20/maua
Add random messages service to the question view

Refactor the input number validation.
Extract repeated code in the practice service into a common
method, add the repeat tag filter.