Make library working with Android 2.2+
Add upstream
Unnecessary .
Don't use measure attributes in styles
Merge pull request #15 from f2prateek/hotfix

Don't use measure attributes in styles
Merge pull request #13 from Tolriq/master

Make library working with Android 2.2+
Cherry pick styles for different versions.

Closes #17
Add Travis CI
Merge pull request #18 from f2prateek/cherry-pick-style

Cherry pick styles for different versions.
This renames the modules.

The groupId is now `com.f2prateek.progressbutton`; not `com.fprateek`
The `library` module is now named `progressbutton`
The `samples` module is now named `progressbutton-samples`

The artifactId's are unchanged.
Merge pull request #19 from f2prateek/rename-modules

The groupId is now com.f2prateek.progressbutton; not com.fprateek
The library module is now named progressbutton
The samples module is now named progressbutton-samples
Disable email notifications in Travis
These shouldn't be here!
Move sources into`src/main/java', update targetApi to 19
Fix some lint checks
Use style references correctly
Add Tests!

Includes:
- Initial setup for tests.
- Update the description.
- Add Travis status badge to README.
- Validate the maximum value. Make sure it's not below zero.
- Update some plugins, remove unused support library version

NOTE: Remember to set the working directory in IntelliJ to the library module
(not the parent) to run unit test from the IDE.
Update gitignore, remove weird manifest folder and delete screenshot.
Merge pull request #20 from f2prateek/tests

Add Tests
Add download instructions in README