Updated to use google-play-services.jar.  I don't think this is the best

Updated to use google.play.services.jar since Eclipse would not build project otherwise.  This primarily impacted line 9, which now shows an absolute path on my system.  I don't know Java well enough to make a relative path from where the Android SDK is, but I at least wanted to expose the missing library from the build path and hope someone can fine tune my fix so others can get the mobile back end started running more easily.