Merge pull request #205 from adamarla/master

marks bug fixed
Merge pull request #206 from adamarla/master

syntax error
Merge pull request #207 from adamarla/master

Happy now Mr.Json Parser?
Changed tooltipcs in stabs grading
Merge branch 'puzzle'
Merge branch 'master' of github.com:abhinavc/web-application
Minor edits to stabs/graded action and RABL
stabs/dated also used in student console
Added method to stats on stab quality for a given question ...

The stats are used render bar-graphs (viewable by students)
Group scans for stabs by stab-id
Allow processing of any json key within preview.loadJson

We still don't have a use-case for when preview.images is an
array of hashes. But it was anticipated and some code changes made.
Those changes have now been made generic
Added method to return text-version of stab quality
Different json for stabs/dated depending on who is calling (student/examiner)
Wide-Y styled the same way as wide-X
Carousel controls should have a z-index > overlay
Loading bell-curve for each stab
Merge branch 'puzzle'
Corrected / simplied some code related to stab preview
Corrected / simplified some code related to stab preview
Tracking how many answers and solutions a student saw