Merge pull request #7 from chansencengage/master

passing config to proxit.js when brought in via a grunt task
Update package.json
Issue-8:x-forwarded-for for each request
Added request interceptor before forwarding request.
Fix Issue #9 and update README.md
Update README.md
Update package.json
Update README.
Add grunt watch.
Starting to add some tests to config before extending it.
Did some config cleanup.
Add another config test scenario.
Get tests running on travis ci.
Deregister all on mockery teardown.
Add schema validation to proxit configuration.
Rename main.js to server.js so that npm start also starts proxit.
Some server cleanup.
Remove interceptor logic for now. Will add soon with API.
Config schema now allows plugins to be listed.
Early plugin work.