1. Install latest Lucky Patcher Download v2.7.1 http://adf.ly/EcJEE
2. Run Lucky Patcher > Menu > Select 'Patch to Android'
3. Select √ 'Signature Verify always True' and 'Disable Zip Signature Verify' > Apply > Yes
4. After reboot go to 'Patch to Android' and check (Patch applied). If applied exit from Lucky patcher. otherwise do 3rd step again.
5. Backup current Google play with Titanium backup if you want to restore original version in case.
6. Rename downloaded: 
GingerBread users > rename to 'Vending.apk' 
ICS / Jelly Bean users > rename to 'PhoneSky.apk')
and copy/replace renamed apk to '/system/app/' folder
7. Done. All Apps on Device with LVL is licensed. (Tested to GoldenDict, TitaniumBackup, PowerAmp and other)

MF : http://adf.ly/EcJ5y
zippy : http://adf.ly/EcJKy
limelinx : http://adf.ly/EcJd4
sendspace : http://adf.ly/EcJwD