Replace deprecated $wpdb::escape() with esc_sql()

Conflicts:
	admin/settings/settings-tax-rates.php
move dummy data to dummy-data dir
Function refactoring.
Filter Request: Login Credentials

I'm trying to add a "remember me" option to my login form. WordPress
supports this, but it's hardcoded to always on in the WC form handler.
Since you can't tell a difference in PHP between an unchecked checkbox
and no checkbox at all, this seems like the simplest alternative that
maintains backwards compatibility. Thanks.
3.6 ready !
remove spaces in favor of tabs in shipping classes
Tax rates pagination. Closes #3036.
Search for US/UK on country field. Fixes #3626.
Merge pull request #3624 from BFTrick/remove-whitespace-in-shipping-classes

Remove Spaces in Favor of Tabs in Shipping Classes
Merge pull request #3619 from dominic-p/filter-logon-creds

Filter Request: Login Credentials
Replace placeholder script. Closes #3586.
remove deprecated function. Closes #3582.
Filter on the shortcode products query
Optimise sale query. Closes #3264.
Remove white space. Closes #3499.
Cart item data templates Closes #3216.
Merge pull request #3627 from Geczy/master

Filter on the shortcode products query
Search first and last names Closes #3536
Tweak download handler Closes #3394.
esc_attr Fixes #3451