Tocho Tochev

Add offline mode (fallback to env)

5

I tried to add an offline mode using `-o` (as suggested in https://github.com/tpope/vim-classpath/issues/6 ), however lein respected it only for the stuff from the maven repos while still downloading from...

This PR: - fixes some typos - adds the example dir to the README - bumps the version, as the latest version (0.5.1) doesn't include some merged changes for python3