PLT-487 Enums for PutCall, LongShort, PayReceive
PLT-487 Enums for PutCall, LongShort, PayReceive

Better Javadoc
PLT-487 Enums for PutCall, LongShort, PayReceive

Adjust logic of normalization method
Merge pull request #30 from OpenGamma/topic/PLT-487

PLT-487 Enums for PutCall, LongShort, PayReceive