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
Merge pull request #2168 from janitor61/master

bugfix - Fedex quoted rates always return account rates and ignore config setting
Merge pull request #2167 from CoverUp/patch-1

BUG FIX on category.tpl
Merge pull request #2166 from opencarthelp/master

"404 Not Found" for nonexistent information pages
Update owl.carousel.css

prev and next buttons fixed as flexslider style
Merge pull request #2175 from CoverUp/patch-1

Update owl.carousel.css
check if $session->data['guest']['customer_group_id'] &  $session->data['customer']['customer_group_id'] isset

I have come across this issue that when using different modules, some may set the guest item in the session array, but not set the customer_group_id

what happens is this line of code troughs an error. best tot avoid this by checking if set for both the guest array and the customer_group_id item.
modification fix
Design/Layout title fix in select dropdown 

since developers often add more then just a name to the module heading but also html tags to style their name, this started to break the look in design/layout form 

best to strip the html tags so that the title looks normal
Update sagepay_direct.tpl
Update sagepay_direct.tpl
Update nochex.tpl
Merge pull request #2191 from MarketInSG/patch-3

Update nochex.tpl