add capistrano as development dependency
initial capistrano generated configuration
remove app and db placeholder roles.

Mostly generated to simplify rails deployment.
set name and repository url
check write permissions
set deployment directory and scm
capistrano bundler dependency
ask for git branch to deploy
update gemfile lock
use a command map to avoid PATH weirdness
start application by running rackup

Had to symlink ruby to /usr/bin/ruby.
Capistrano and PATH don't mix well.
run rackup as daemon
stop application server
use absolute path for database config
set environment variable for operating mode
set path for production db
debug message
optionally configure rake tasks depending on stage
start server with correct environment
capistrano tasks to trigger rake :db namespace