Add http-proxy generator/blueprint
setup proxies with http-proxy
Add http-proxy as a dependecy in case someone uses proxies
Makes routing go addon middlewares, mocks, proxies, app.
Make proxies with with requests that have bodies.
Add connect-restreamer as a dependency
Integration tests for proxies
Merge branch 'master' into explicit-proxies

Conflicts:
	tests/acceptance/generate-test.js
Add info about proxies and mocks to CHANGELOG
Merge remote-tracking branch 'upstream/master' into explicit-proxies

Conflicts:
	CHANGELOG.md
Merge pull request #1530 from trek/explicit-proxies

[WIP] Explicit proxies