Make Fugue simple wrappers such as Option, Pair etc. Serializable

[Trevor Campbell]

Make Fugue simple wrappers Option, Pair and Either implement Serializable so that they can be used as the keys (and possibly values) to caches in clustered environments.

[Jed Wesley-Smith]

Pair perhaps (although I'm not sold on Serializable as a mechanism for distribution, it makes the binary format an API).

Surely no-one should be using Option for keys or values?

[Trevor Campbell]

Option is the real candidate we found people using in JIRA as the default (field config or scheme or workflow or whatever) is often stored in the database with a null key. In other places people want to cache the miss, this is the most common usage.

[Jed Wesley-Smith]

fixed in 2.1.0