Added model Interfaces
Merge remote-tracking branch 'source/master'
Created Interfaces and Comment. Added gets/sets to Story class.
Added logo! yayyy
Merge branch 'source'
Merge remote-tracking branch 'james/master'
@jviau, started use cases in UseCase directory

Feel free to move/change/add/whatever.
Added some use cases and a template
Update 2_ReaderPlaysStory.md
Update 3_AuthorCreatesChoice.md
Updated template, added Story Fragment addition
Merge remote-tracking branch 'origin/master'
Renamed a UseCase for consistent numbering
Removed IGet and ISet, will be changed later
Being picky about how the license looks
Updated to @jesseDtucker 's requirements.

@JTfinlay, please check
Merge pull request #22 from afontaine/UseCase

Added a Use Case template and some use cases