Merge pull request #1533 from pdewouters/docblock-fixes

Docblock fixes and typehinting for array parameters
Stripslashes on discount code name. Closes #1563
Updated changelog
Update post-types.php
Update post-types.php
Update post-types.php
Update post-types.php
Fix: Undefined index: edd_heartbeat

PHP Notice:  Undefined index: edd_heartbeat in /wp-content/plugins/easy-digital-downloads/includes/admin/class-edd-heartbeat.php on line 48
revised condition + fixed typo
Update README.md
added space
Merge pull request #1565 from sumobi/master

Fix: Undefined index: edd_heartbeat
[i18n]> pot file updated for v1.8
Merge pull request #1567 from fxbenard/master

[i18n]> pot file updated for v1.8
[i18n]> French languages update for v 1.8
Merge pull request #1568 from fxbenard/master

[i18n]> French languages update for v 1.8
Add edd_download_class filter to override class name in [downloads] shortcode
Merge pull request #1571 from brichards/master

Add edd_download_class filter to override class name in [downloads]
Pass +0 to SQL to ensure the order is correct for best selling. Closes #1376
Update api.php