Add urls for all endpoints
Update README.md
Add all endpoints
Merge pull request #3 from nickb1080/endpoints

Endpoints
check off progress in readme
Date validation
fix 'type' params across endpoints
Misc improvements
Date validation
fix 'type' params across endpoints
Misc improvements
Merge branch 'master' of https://github.com/nickb1080/nyt-congress-node
Merge pull request #4 from nickb1080/master

Support browser; misc improvements
Initial tests
More tests
Merge pull request #5 from nickb1080/test

Add tests
added travis file