Merge pull request iammert#28 from icechen1/master

Use rectangle shapes for highlight areas + other changes

- Update gradle build as 1.5.0

Merge pull request iammert#21 from ParitoshBh/master

Added sample unsigned apk for sideloading

MinSdkVersion is set from 16 to 14.

View is removed after dismissed.

Sample project is updated. Gravity and Focus example fragments are ad…

…ded.

Retrolambda dependency removed from materialintro library module.

Readme is updated.