.debs-cache local folder (faster chef installs)
gitignore .debs-cache
Rename provision script.
Dev deployer install moved to a separate script.
Move some util methods to App.

- env vars reads
- restarts
- path resolution
Move deployer modules to a "deployers" submodule.
Running a command and getting its output possible now with the
output=True kwarg.
Sample node configs for Node.js and Python
Enable SSH forward for dev vagrant boxes.
Switch to the python module for test boxes.
Unify python/node launch logic.

Implement gunicorn_django process launch.
Fetch and update both python and node stacks.
set postgresql admin password in sample config.
enable "vagrant up" in start script.
Get rid of DJANGO_SETTINGS_MODULE override in python sample node
config
DOMAIN env var added to sample node json
Move sample stack configs to stack dirs.
Change deploy/run script shebangs to enable unbuffered output.
Pass DB_* env vars to manage.py (syncdb and friends)
Warn user about possibly slow pip install run