Update docker to Swift 5.1.4

1.0.0

Update to Swift 5.1.4 docker image

Allow multiple request files

You can now run multiple sourcekit requests in one skit invocation with:

skit request1.yml request2.yml

This is required for some sourcekit requests that need the file to be "opened" before operating on it.

Dynamically link sourcekitd

skit now dynamically links sourcekitd, meaning you don't have to recompile skit when the path or version of Xcode changes.

Add `--version` command

0.1.2

Add version command (#4)

Update to Swift 3.1.1

0.1.1

Update Swift to 3.1.1 in Docker

Initial Release!

This is the initial release of skit. See the README.md for installation and usage instructions.