Add opt dir instructions 

Add missing instructions that will affect the shell config.
How did I miss this
Merge pull request #36 from kevinSuttle/master

Add missing opt dir commands
Typo
Dat MIT
Merge pull request #44 from jroes/patch-1

Typo
Update README.md including module documentation

The README.md has more detailed instructions on how to include modules from Github by editing your Puppetfile and site.pp files.
Updates rails docs for consistency
Merge pull request #54 from adamyonk/patch-1

Updates rails docs for consistency
Merge pull request #53 from kyleprager/master

More detailed documentation on how to include modules.
Merge pull request #45 from jroes/patch-2

Dat MIT
Update boxen-my-config for the proper login env
halp!
Merge pull request #76 from fromonesrc/patch-1

add help info to readme
Merge pull request #74 from j2sol/master

Update boxen-my-config for the proper login env
Refactor git handling
change $USER to ${USER} to avoid history expansion

see [here](http://stackoverflow.com/questions/15140221/weired-zsh-behavior-how-to-debug/)
Merge pull request #83 from rweng/patch-1

change $USER to ${USER} to avoid history expansion
script/nuke failed to delete receipts

Can't use a bare system call because we need globbing
Merge pull request #85 from boztek/nuke-delete-receipts

Fix script/nuke to properly delete receipts