work on Issue #218.  create dataAvailable function for question pool model to check the validity of the data before a transition to question view takes place
sanity check in landing view before do the transition to question view of featured content
typo error on the name of the course list variable that holds the list with the id's of the courses
refractor of transition to question view in controller. Issue #218
no actual change
code refactoring..use of selectCourseItem function
code refactoring selectCourseItem function
send Statistics to the  server, sends only data from the course list and not from featured content list.
transition to question refactoring in controller, remove the arguments and removed the authentication related function.
first workaround on deleting from statistics table in remote database, the featured content that was wrongly inserted during the previous workarounds
improved the bugs in the check  synchronization in featured model. to equivalent the fd id with the actual id that is taken from the server for the featured content course.