add explore search field, author results, and search summary sections
Merge branch 'PRAC-256-search-foundation'
add search result background color
added new landing pages and coe templates
adding home link to explore pages
scss not ready for review. but style has been remove it from markup.
add initial images for coe landing page
Merge branch 'master' of https://bitbucket.org/practiceupdate-ondemand/practiceupdate
Update mockups
update coe mockups
untrack local IDE settings
update textbook info to match Allison's document