Merge pull request louthy#71 from la-yumba/master

added basic tests for Try (mainly illustrative)

Nuget 1.6 package

Minor fix to deal with message backlogs

Updated nuspec

Queryable support added

Deprecated headSafe
Added headOrNone for safely finding the optional head item in a collection
Added Query namespace (static class) for working with IQueryable.  Has functions:
 - headOrNone
 - tail
 - map
 - filter
 - choose
 - collect
 - sum
 - rev
 - append
 - fold
 - foldBack
 - reduce
 - reduceBack
 - find
 - freeze
 - zip
 - length
 - iter
 - forall
 - distinct
 - take
 - takeWhile
 - exists

Either RL flipped to LR - Breaking change!

Renamed with and With to map and Map (old functions made [Obsolete]

None|Left coalescing using Logical Or operator (||)  Option, OptionUnsafe, Either, EitherUnsafe.

Added: toList, toArray, toQueue, toStack, toSet

Update README.md

Update README.md