* Search icon added to navbar if search enabled in config
* New search dialog added which overlays current page when searching
* The docs search box now opens the new search dialog instead of
displaying results within the docs page itself
Close#784
BREAKING CHANGE:
Search widget is deprecated and `content/home/search.md` should be
removed
Remove fingerprinting from MathJax config JS to shorten its generated
filename. Reduces chance of JS filenames becoming too long for user's OS
to handle due to long Sha512 asset fingerprinting.
Minifies and fingerprints Academic's own JS for faster loading and to
prevent old versions getting cached by web browser.
Refactors Algolia search JS into its own file.
Close#768
See #794
George Cushen