Update HACKING.md to more closely resemble reality
Typo in HACKING.md
Cleaning up develop.md formatting, add more manage.py examples, removed reference to vagrant-cachier version
deleted HACKING.md, because it's outdated and new documentation is in doc/develop.md
Merge pull request #797 from micahflee/vagrant-instructions

Updated HACKING.md to more closely resemble reality