Fix compilation: Do not disable JPS in IDEA 12
Fixing compilation for IDEA 12

Revert 530dc1ca95d240bdddf7081cf22ee4b0c6b3d425
Fix compilation for IDEA 12: no SafeDeleteOverrideAnnotation is available
Fixing required IDEA version to be 12.1
Fixing compilation in IDEA 12.1

Reverting parts of b14a5f3ea1c5ef04b0148e085b5743a415c3b58c
Fixing compilation in IDEA 12.1

Reverting parts of a4451dbf24801259255a7db06176ca784c0eaeb9