Update to swift 1.0

This updates the project to swift 1.0 and makes a couple other changes to make it easier to use tokenizers and parsers in a separate project.  Not all tests pass (I think there were some failing according to a prior commit message), though this is a start.

Will fix https://github.com/SwiftStudies/OysterKit/issues/3

**Note:**  According to [this](http://stackoverflow.com/questions/26691653/how-do-i-link-to-a-3rd-party-swift-framework#comment42160252_26750152) stackoverflow comment, you can't use dylibs with command-line projects, so the 'Hello World' project needs to be updated to a Mac/iOS project.