Radio button not always clickable + make payment option entirely clickable

- Fixes radio input not being clickable all the time. Sometimes it takes 3-5 clicks to register
- Swapped <span>'s for <label>'s and add "for" attribute so each payment option is entirely clickable
Merge pull request #952 from sumobi/master

Radio button not always clickable + make payment option entirely clickable
Simplified removal of PayPal CC form
Added new headers to PayPal post back for HTTP 1.1. Closes #930
Add (optional) to billing line 2. #949
Added short codes to page settings. Closes #954
Improved spacing for checkout fields. #949
Improved spacing and wrapper for payment mode select. #950
Fixed gateway loading
Merge branch 'master' of github.com:pippinsplugins/Easy-Digital-Downloads
Updated edd ajax
Fixed paymentmode select
Fix #955
Improved edd_remove_item_url() to ensure it always works with all permalink structures.
Merge pull request #956 from sunnyratilal/master

Fix #955
Update login-register.php
Fix undefined index on $name
Merge pull request #958 from elliott-stocks/patch-2

Fix undefined index on $name
Leggo!
Added  = 0 as default to the microdata filters