sorry we broke CacheImplicits

[eed3si9n]

I added a new implicit for OffsetDateTime in eed3si9n/sjson-new#76.

This unfortunately will break ProtocPlugin when the next RC comes out:

[error] java.lang.AbstractMethodError: Method sbtprotoc/ProtocPlugin$.sjsonnew$CalendarFormats$_setter_$offsetDateTimeStringIso_$eq(Lsjsonnew/IsoString;)V is abstract
[error] 	at sbtprotoc.ProtocPlugin$.sjsonnew$CalendarFormats$_setter_$offsetDateTimeStringIso_$eq(ProtocPlugin.scala)
[error] 	at sjsonnew.CalendarFormats.$init$(CalendarFormats.scala:34)
[error] 	at sbtprotoc.ProtocPlugin$.<init>(ProtocPlugin.scala:11)
[error] 	at sbtprotoc.ProtocPlugin$.<clinit>(ProtocPlugin.scala)

This is because CacheImplicits is mixed into ProtocPlugin.

[xuwei-k]

fixed in #33