Boss executable
Merge pull request #290 from pius/master

Boss executable
Merge pull request #291 from cstar/master

Supporting boss apps (such as cb_admin) can be included as rebar dependencies.
Bump Elixir to 0.9.3
Merge branch 'master' of github.com:evanmiller/ChicagoBoss
Merge pull request #292 from cstar/master

Fixing path problems by making them optional
make app builds a self-contained rebar-compliant app.