Gradle build support. Minsdk 14

Remove HoloEverywhere references from Storymaker.
update README
fix refactor error in LessonsActivity
Cleanup changes to SceneEditorActivity
Merge pull request #79 from OnlyInAmerica/gradlesecureshare

Gradle / Android Studio support
add liger as a submodule
Update with liger gradle library module dependency.

Remove armeabi support in favor of arm v7a
Merge pull request #80 from OnlyInAmerica/secureshare

Add Liger library module dependency
Updated SecShareLib Peg to remove holoeverywhere refs.