Update javascript and css resources

[ctubbsii]

Several libraries we use for the website are a bit out of date and could be updated. Here's a list of some:

• [ ] Bootstrap (currently using 3.3.7)
• [x] Font Awesome (currently using 4.0.3)
• [x] DataTables (currently using 1.10.12 based on jQuery 2.2.3)
• [x] jQuery (currently using 2.2.4)

Edit: The above dependencies are all imported in default.html. The search page imports its own dependencies that need updating:

• [x] lunr
• [x] jquery

[ctubbsii]

Font Awesome, DataTables, and jQuery were updated in #396

[DomGarguilo]

lunr was updated in #399 and jquery import was removed from that page so the main import of jquery would be used.