added referral_db.php. also some cleanup
free trial copy change
spacing fix for free trial notification in article sidebar
basic referral db functions
free trial thanks copy change
more efficient custom field grabbing, + support for separate abstracts
adding hku logo
hku logo transparency
removing useless post vars
added get_referral_object function
support for multiple coupons
using sessions for coupon storing. better UI for showing discounts and its effects
referral code through GET
changed as low as to normally when discounts are applied
fix bad formatting and whitespace issues
generating and fetching referral codes in the order placed page
updated editorconfig
adding textfill.js
added user email to logout dropdown menu
livereload on dev environments