added twitter REST-ful API endpoint, and updated rep profile
updated jshint (only one now)
updating karma/grunt
twitter API on server (with test) and embedded in profile view (not tested)
Updated tests for Lawmaker model: get.
require oauth to lowercase
Merge pull request #34 from willchen90/master

Added Twitter functionality
Added to lawmaker tests and fixed development env.
Removed all .DS_Store file from git and added them to .gitignore.
Added databasePopulator.js file.
added twitter REST-ful API endpoint, and updated rep profile
updated jshint (only one now)
updating karma/grunt
twitter API on server (with test) and embedded in profile view (not tested)
require oauth to lowercase
Added method stubs and dependencies in database Populator.
Implemented databasePopulator.fetchLegislators, and added tests, plus dev-dependencies.
Implemented addInfluenceData in databasePopulator, added async dependency, updated tests.
Cleaned and commented code and tests for database populator.
Cleaned up more.