Removes unused JS and imgs
Fix capitalization inconsistency in vertical nav
Updates credits in humans.txt
Removes old test files.
Removes old readme in data file
Removes unused files.
Adjusts seach words and adds intro paragraph to search results.
Fixes no search results layout bug and adds link to beckley repo.
Adds filter to documentation so that only those terms that are relavent to the site-wide documentation page display there. Other terms are used in tooltips only, but can still live in the documenation yml file.
Adds chart notes to bubbles viz.
Merge pull request #302 from 18F/feature/many-small-fixes

Feature/many small fixes