Adzerk Code

Added Javascript code for Adzerk
Add Gift Subscriptions Field

Added a Gift Subscriptions checkbox to the checkout page. Also, it
shows up in the Order Admin page as a Custom Field. Although not
tested, it is set up to be included in the order email.
Add Flush Rewrite

Added flush rewrite rules because Woo Commerce was sending their
endpoint pages to 404.
Merge branch 'master' of https://github.com/dmvieira74/pigmentandpalette

Conflicts:
	functions.php