v0.2

• Make elm_proto_library() functional.
• Let elm_repository() use elm_library() instead of elm_package() where possible. This disables Elm's package SAT solving, which doesn't print user-friendly errors in our case.
• Add patches to elm_repository() to permit application of local patches to Elm packages.
• Make elm_binary() respect the compilation mode, allowing you to build with the time traveling debugger enabled.