Add chrome to landing page.
Assume section 1 for the chrome on the landing page
PEP 8
Date picker should be text boxes
Account for case where version does not have by_date (e.g. it is not the final version)
Merge upstream
Merge pull request #304 from theresaanna/master

Bunch 'o fixes
No need to override get; override get_context_data instead
Merge pull request #305 from cmc333333/landing-chrome

Landing chrome
Merge pull request #306 from cmc333333/date-picker

Date picker now text boxes
fixing search pagination and routing w/ new main content scheme