Merge pull request #1080 from eka7a/master

Added user group permission for error log
admin work done
Merge branch 'master' of https://github.com/opencart/opencart

Conflicts:
	upload/admin/controller/sale/order.php
	upload/admin/controller/sale/voucher.php
added text brand

correction in breadcrumb on product page when manufacturer_id exists
fixed

https://github.com/opencart/opencart/issues/1084
removed merge code
fix for

https://github.com/bassco/opencart/commit/8d0701c6d0f7dd8660d745bac9ce47c1cda3604b
Merge pull request #1083 from stan-bg/patch-11

added text brand
unfinished list grid category page
more work done on product list / girds
more product list / grid work done
product list / grid finished
added product grid / list to other pages
more admin work done
Selected default customer group when adding a new tax rate