AndroidManifest.xml: fix whitesapce
travis.yml: move package versions to shell variables
Update Android SDK to 22.0.5, Build Tools to 18.0.1, and API Level to 18
Merge pull request #52 from cpeterso/cpeterso/update-sdk

Update Android SDK to 22.0.5, Build Tools to 18.0.1, and API Level to 18