fix download link in readme
gradle updated
Merge pull request #17 from andraskindler/gradleupdate

gradle updated
Build the sample project with gradle as well
point to the releases build of rebound
Project Restructure

- reorganize around a standard gradle directory structure
- create gradle build files
- separate Android specific utilities from the physics core
  to allow use on other java platforms (processing)
- create a continuous integration build script for travis CI
- move to proper semver versioning. The API for rebound is not fully
  finalized we should be at version 0.3
- API is unchanged

TODO:
- maven hosting for build artifacts to allow easy integration
bump release linked in README
formatting release version
bump for travis build
link to the appropriate travis ci image
bump
Programatically generate configurator view

This removes the dependency on resources making it possible to put
the entire project into a jar file for easier integration.
bump version
just link to latest release
Merge branch 'master' of github.com:technicalcycling/rebound

Conflicts:
	build.gradle
	rebound-core/src/main/java/com/facebook/rebound/BaseSpringSystem.java