Merge pull request #2131 from openbaypro/master

OpenBay Pro update for latest release.
Updated changlog to show latest version of OpenBay included.
https://github.com/opencart/opencart/issues/2134
Merge branch 'master' of https://github.com/opencart/opencart
Fix Some Incomplete Breadcrumbs

Fixed / Added Some Missing Breadcrumb Entries
Merge pull request #2140 from uksitebuilder/fix-incomplete-admin-breadcrumbs

Fix Some Incomplete Breadcrumbs
https://github.com/opencart/opencart/issues/2144
Merge branch 'master' of https://github.com/opencart/opencart
https://github.com/opencart/opencart/issues/2150
Fix PayPal Pro Iframe

Converted brackets to parentheses for config->get
https://github.com/opencart/opencart/issues/2155
Merge pull request #2153 from uksitebuilder/fix-paypal-pro-iframe

Fix PayPal Pro Iframe
Fix some incorrect breadcrumbs

Fix some incorrect breadcrumbs which were pointing to extensions - feeds
for some reason

Also remove one language variable not used in sitemaps
https://github.com/opencart/opencart/pull/2159
Merge pull request #2158 from uksitebuilder/fix-more-breadcrumbs

Fix some incorrect breadcrumbs
unfinished owl carousel replacement of flexslider
"404 Not Found" for nonexistent information pages
BUG FIX on category.tpl

Wrong extra class prevent the select input to change (freeze on default)
Add rate type check to returned XML
Add rate type check to returned XML