add ability to set database host instead of searching for it
have environment use the ssh wrapper if using a deploy key
add def for bundle_options to fix NameError
add ability to specify runit_template_cookbook for unicorn
pass preload_app option through to runit template
add new option to README
Merge branch 'specify-db-host'
Merge branch 'bundler-ssh-fix'
Merge branch 'bundle_options-fix'
Merge branch 'unicorn-service-template'