+ attach source&javadoc for google-play-services, apk-expansion-downloader and apk-expansion-zip-file artifacts
- fix problem with compilation latest apk-expansion-downloader version with require never SDK to compile
- fix resource path for apk-expansion-downloader
! there are problem with latest zip-file  extrass (r3), reported here apk-expansion-downloader
- fix path to javadoc
- fix file name for deploy google-play-services
Merge pull request #89 from tprochazka/source

Attach sources and some fixes for apk extensions and play services