added proxy support
fixed up proxy support
added lazy.js to merge options
reformatted to match original code
one final format patch
added lazy.js to deps
truly last format patch
restored agent configuration (http and https)
Merge pull request #17 from raymcdermott/development

http proxy support
rename commonRequestOptions to defaultRequestOptions
prefix HTTP proxy env vars with HEROKU_
move request options getter into a function
add proxy-related specs
rename HEROKU_HTTP_PROXY to HEROKU_HTTP_PROXY_HOST
add Ray McDermott to contributors
v1.1.0