Changed && to || in process-download.php
Fixed image 404 for #554
Added support for WP 3.5 Button 

Added support for using WP 3.5 button styling for "Insert Download" button in Post/Page editor. 
First it will check if the current WP version is less than 3.5. 
If the condition is true, it will display the button in old format.
If the current version is 3.5 then the "Insert Download" button will appear in new format. 
Here is a screenshot for WP 3.5 http://icustomizethesis.com/wp-content/uploads/2012/12/edd-button.jpg
Merge pull request #577 from psahalot/patch-1

Added support for WP 3.5 Button
Added __return_false as section callbacks for #574
Several fixes to payments/functions

- Improve query in edd_get_purchase_id_by_key
- Remove extract from edd_get_payments
- Improve PHPdoc throughout the file
- In edd_get_payment_status, make the first if statement || instead of
&&, as that's what it should be I think.
Merge pull request #578 from jdevalk/master

Fixes in payments functions
Add {url_list} template code

To be used in emails for email clients that fail to do what they
should, *cough* Outlook *cough*
Clean up of emails/template.php

- phpdoc fixing
- prevent a notice for not set $fullname
- make sure $notes is shown in preview template
- whitespace fixes
Improve edd_send_back_to_checkout()

* Now it can accept array of query args or URL query string.
* Removed unnecessary global $edd_options call.
* Append new query variables using add_query_arg().
* Ref: #560.
Some UI tweaks, and bug fixes. Metaboxes should be properly registered so they dont get the "move" cursor without actually being able to be moved. See #580.
Few more bug fixes trying to sort bad views.
Fix changing views.
Merge pull request #585 from spencerfinnell/feature/logs-ui

Some UI tweaks, and bug fixes for Logs
Add {url_list} template code

To be used in emails for email clients that fail to do what they
should, *cough* Outlook *cough*
Clean up of emails/template.php

- phpdoc fixing
- prevent a notice for not set $fullname
- make sure $notes is shown in preview template
- whitespace fixes
Code cleanup

This entire commit is cleanup, no change of functionality whatsoever:

- fixed indentation / whitespace etc.
- fixed PHPdoc
- replaced two instances of "if ( $discounts )" with an is_array
- removed unused $edd_options var in edd_process_purchase_form
- removed unused function var $valid_data in edd_get_purchase_cc_info
Merge branch 'master' of https://github.com/jdevalk/Easy-Digital-Downloads
Payments contextual help. See #527
Dashes instead of colons. See #527