Makes the javascript fully https ready.

Closes #50, @konklone is this all that was left for #50?
Adds some comments about how the js is working
Uses protocol relative urls for github, gov code apis
Update stages.html
Merge pull request #123 from 18F/stagesheadertext

Updating header description of stages
capitalizing API and FEC blog tags to fix links
Merge pull request #127 from 18F/tagsfix

capitalizing API and FEC blog tags to fix links
Minor style changes to stages page intro text to match GOV.UK branding guidelines.
Modifies styling on status page. Moves back to homepage nav to top and matches styling of similar nav on project pages.
Cleans UI and code on projects pages.
More style edits. Also move api.data.gov to beta phase.
Merge pull request #128 from 18F/feature/project-page-ui-up

Cleans stages and project pages
adding api.data.gov 'accepting clients' text
Adjusts wording and icon for blog news
Update index.html
Simplifies link wording again
Further simplification
Update index.html
Merge pull request #130 from 18F/feature/change-tag-wording

Adjusts wording and icon for blog news
removes protocol relative urls