Update low_order_fee.php
Update customer_list.tpl
Update reward.php
Merge pull request #2094 from OpenCartAddons/patch-3

Update low_order_fee.php
Merge pull request #2096 from OpenCartAddons/patch-5

Update reward.php
Merge pull request #2095 from OpenCartAddons/patch-4

Update customer_list.tpl
https://github.com/opencart/opencart/issues/2066
Merge branch 'master' of https://github.com/opencart/opencart
https://github.com/opencart/opencart/issues/2103
Merge remote-tracking branch 'upstream/master'