removed extra M
added JSON
tidy json example
switched gcd dispatch to concurrent
Added filter for Dictionary + better formatting
Added dictionary reduce and Thrush associativity.
Merge pull request #11 from tLewisII/master

Extra Dictionary extensions + Thrush associativity
removed comment
added initial capacities
added Optional.getOrElse
use type inference for json examples
Added unsound functor stub
add golang-like channel operator
memory leak fixed
json prim instances
Added MVar
fixed mvar write
added a function
added user json decode example
added User json example to readme