Upgrade default Oracle JDK version to 7u21-b11
Upgrade default Oracle JDK version to 7u21-b11

badele/fabtools,davidcaste/fabtools,n0n0x/fabtools-python,bitmonk/fabtools,AMOSoft/fabtools,pombredanne/fabtools,ronnix/fabtools,prologic/fabtools,wagigi/fabtools-python,ahnjungho/fabtools,sociateru/fabtools,fabtools/fabtools,hagai26/fabtools