Bump version to 1.0.1

Bump version to 1.0.0

Bump version: 0.4.3

Bump version: 0.4.2

Bump version: 0.3.4

Bump version: 0.4.1

Bump version: 0.3.3

Update for Swift 1.2

Bump version: 0.3.2

Use `map` instead of `flatMap` when parsing

`JSONValue.parse` returns a non-optional `JSONValue`. Unfortunately,
because of Swift Magic, Xcode will happily compile when using `flatMap`
with a function that returns a non-optional. This can (but doesn't
always) result in a EXC_BAD_ACCESS error at runtime. Using `map` here is
actually the correct behavior, but should also fix this crash that
people were seeing.