Enabled bitcode for watchOS and tvOS

40-50% performance fix

Merge pull request tristanhimmelman#379 from zulkis/master

JSONDictionary public getter

Updated deployment targets

Fixed spelling mistake

Performance fix: created two valueFor functions (one for dictionaries…

… and one for arrays) to remove the need to cast the JSON dictionary input

Casting the dictionary was very slow especially given a large JSON input

- added missing compile sources to tvOS target

- checked out Nimble as submodule

removed extra podspec

Merge pull request tristanhimmelman#207 from Hearst-DD/array-of-arrays

- added ability to parse Arrays of Arrays of Mappable objects