Added route parameter to district_map; passing in bioguide_id causes map to focus on that district.
Improved default district selection when district_map route is for a senator.
Fixes #21 : removed pseudo-caching of representatives to prevent duplication errors.

Conflicts:
	app/scripts/controllers/district.coffee
Adjusted map dialog styling to align better when page header is rendered.
WIP
Merge branch 'compare' of https://github.com/IdeaHaven/influence into compare

Conflicts:
	app/views/compare.html
wip
fixed error where data being passed was null because it was not returned from the api, now the change function checks for non null data before drawing the d3