Add Gradle build files.

Now launching gradle installDeug from the demo/ directory you can install the demo app
in your device/emulator.
Ignore gradle related files.
Merge pull request #26 from gipi/gradle

Add Gradle build files (commit by gipi)
Update README.md
isExpanded() would always retun true if called before layout.
Added ability to disable sliding
Codestyle fixes
README update
README update
Merge pull request #29 from AlexandrFox/master

Sliding disabling
Added ability to use the drag views touch events. When set, the drag view can scroll horizontally and have its own click listener
Update README.md
Merge pull request #36 from benkay/isExpanded

isExpanded() would always retun true if called before layout.
better commenting for why vertical scrolls are intercepted after horizontal check
fixed spacing
add anchor point
modify anchor conditions
Fix: when the panel height is changed the layout is not updated with that value.
Merge pull request #44 from gipi/setPanelHeight-fix

Fix: when the panel height is changed the layout is not updated with that value.
Merge pull request #30 from elisemurray/master

Added support for a horizontally scrollable drag view