Set the scheme shared
Add .travis.yml
Add Travis CI build status image to README
Update .travis.yml for CocoaPods
Add CocoaPods dependency explicitly to the shared scheme
Add ReactiveCocoa dependency explicitly to the shared scheme
Fix dependencies order

ReactiveCocoa is higher than application target.
Run bootstrap script of ReactiveCocoa
Update environment variables setting for CocoaPods
Don't install gem's document
Update travis config

To avoid this:
https://github.com/travis-ci/travis-ci/issues/2197
Use xcodebuild directory instead of xctool
Specify 7.1 simulator as destination to use XCTest
Use rake script
Merge branch 'master' into travis-ci

Conflicts:
	README.md
Merge pull request #1 from ikesyo/travis-ci

Set up Travis CI