add play_services repo
update wercker-box information
Update wercker-box.yml
Merge pull request #6 from sugoi-wada/master

add google_play_services repository
Merge pull request #7 from wercker/pullrequest

Release 1.0.5
Update gradle version
Update Android SDK
Update box-android version
Change how to export
Change Android Version = 4.4W when build tools = 20
Update wercker-box.yml
Merge pull request #9 from sugoi-wada/master

Update gradle, sdk, build-tools
et release to 1.0.6 (as per documentation)
update android sdk to 23.0.5
revert changes