Set JDK target to 1.6 so Spiel can be built even with JDK 1.7+.
Set JDK target to 1.6 so Spiel can be built even with JDK 1.7+.

bramd/spiel,beqabeqa473/Asra,beqabeqa473/Asra,bramd/spiel,beqabeqa473/Asra,bramd/spiel