add config context switching. fix import bug
[docs] update README

updated api README
now mentions environment context switching
so that configurations can be automatically assigned based on
environment
[docs] update docs

change todo from txt to markdown for formattability
update README with more categories
[docs] update api docs

change dependencies
add nav to TODO
update README
change dependencies
remove redundant config var

removed 'env' from configs
modified the way config.js works and changed env to NODE_ENV to be more
consistent with sys environment var conventions
update config.js

changed order of precedence
usage was slightly wrong
augmented setup slightly with custom overrides
using commander now instead of minimist
added shell script to start server

for now it passes along args to server.js
in the future it could be augmented, possibly
as a linux service