Patch version of 2.6, released June 5th, 2016.

This is planned to be the last full 2.6 release of all components: further releases, if any, will be micro-releases of specific components with issues. They will be listed under 2.6.7.x.

• #280: FilteringGeneratorDelegate.writeUTF8String() should delegate to writeUTF8String()

• #1194: Incorrect signature for generic type via JavaType.getGenericSignature()
• #1228: @JsonAnySetter does not deserialize null to Deserializer's NullValue
• #1255: @JsonIdentityInfo incorrectly serializing forward references

• Various fixes