Updated to newer versions of Google Play Services and RxJava. BaseLocationObservable updated to use new approach of managing the observable subscriptions from RxJava 0.17. gradle.properties modified to allow import to Intellij IDEA (a workaround based on info from http://code.google.com/p/objectify-appengine/issues/detail?id=134)
Merge pull request #4 from RomanIakovlev/master

Updated to newer versions of Google Play Services and RxJava.