Added logic to create modpack.jar
Added verbosity flag
Cleaned up code around creating modpack.jar for the client
Added files and directories to clean
Added initial code (mostly copy/paste) for server package build
Don't re-download mods that have already been downloaded
Updating .gitignore to reflect new directory structure
Updated modpack version to 0.2.0.0
Forgot to strip jar patch directory from modpack.jar