A huge changes for UBike

1. Need also impot the project of google-play-services_lib
2. add the lib to UbikeFree
3. also put two apk for Google map working with  AVD , plz adb them
before coding.
4. The min version of sdk for UBikeFree is sdk 3.0 (due to google map
v2)
5. plz make sure sdk and AVD all install google service play