set deployment target to iOS 6.0
[fix] missing cache for + [FEMManagedObjectDeserializer fillObject:fromExternalRepresentation:usingMapping:]
[update] managed object deserialiser spec
[add] FEMExcludable protocol
Update README.md
Merge branch 'feature/6' into develop
[update] pod spec version to 0.3.1
Merge branch 'release/0.3.1'

Conflicts:
	README.md