Add admin tool for question importing from a file.
Add license to docblock
Rename protected property, and clean up code and comments.
Move file parser and importer initilization into methods for easier subclassing.
Fix two more references to the class property.
Merge pull request #16 from isaacgrant/question-import-tool

Add admin tool for question importing from a file.
prepare for release of 0.0.29 | package party