Lenticuloids
Fix failure to build
Moved ImArray to extensions
Merge branch 'master' of https://github.com/maxpow4h/swiftz into new_immutable_array
Merge remote-tracking branch 'primary/master'
Comment out currently non-working tests

Extension methods have a problem with being exported currently.
Update syntax
switched toJSON to class func

closes #69
array now has a real map
missing public
marked signal in Future to be internal
Add @auto_closures

Replace fn with f
liftM2
list reverse
Added either :: either a b -> (a -> c) -> (b -> c) -> c function
Merge branch 'master' of github.com:maxpow4h/swiftz into features
Merge remote-tracking branch 'primary/master'
Merge pull request #83 from maxcan/mc-either-function

Added  either<A>(onL: L -> A, onR: R -> A) -> A  function
Expand documentation for `identity`

Originally [from ReactiveCocoa](https://github.com/ReactiveCocoa/ReactiveCocoa/blob/ff67dff254204bdf071299ecdf21f41581a18d22/ReactiveCocoa/Identity.swift).

/cc https://github.com/ReactiveCocoa/ReactiveCocoa/pull/1406#discussion_r14872010
Merge pull request #85 from maxpow4h/jspahrsummers-patch-1

Expand documentation for `identity`