Reintroduced .gitignore file.
Added barebones login form HTML/CSS on index.php, added login.css.
Added sweetalert files, added login.js (no logins yet), deleted .DS_Store files.
altered isbn_num to a varchar type
merging Dirrzuto
changed isbn_num in mysql_test to varchar
Added font for Bookup title
Added links to nav bar, deleted login link, created discovery page
Initial commit for master js file and account setup page, added link to master.js to head
removed duplicate api and renamed submitBookFeedback
formatted fireBaseLookup.php to return just book object