Merge branch 'swift-3.0-wip'

* swift-3.0-wip:
  Version bump
  Oops... fix up version numbering
  Fix test case to distinguish between Float and Double
  Xcode 8.1 barfs when collection code coverage, so we have to temporarily disable
  Make sure we copy Runes as a dependency for test targets
  Fix Encodable definitions so that test cases compile
  Don't ignore Checkouts folder and bump to Argo 4.0
  bump version
  Swift 3.0 support
  Support Swift 2.3.

Merge pull request #21 from edwardaux/argo_3_0_and_bool_support

Argo 3 0 and bool support

Merge pull request #17 from petester42/more-platforms-more-tests

More platforms. More tests

Bumped to use Argo 2.1.0

Merge pull request #1 from paulyoung/optional-collection-types

Add support for optional collection types.