http_server followed by a trailing slash

File usage advice to use --http_server http://localhost/opencart (without trailing slash) and the CLI installer concatenate other directories without adding "/" before the concatenated directory thus saving wrong URLs in config files as eg.: http://localhost/opencartadmin
Added default value for config_image_location

There was no default value for config_image_location.
image_location_width and image_location_height are required fields in
store settings (store_form.tpl)
Fixed incorrect default path to logo.png and cart.png
Revert "Added default value for config_image_location"

This reverts commit 6b2bf6d2155ad199600b94c6db7870cc95a26688.
Added default value for config_image_location
duplicated code
https://github.com/opencart/opencart/issues/1610
Added BluePay payment gateway.
more api work done
Merge branch 'master' of https://github.com/opencart/opencart
Changed email to e-mail
Changed email to e-mail
Changed email to e-mail
Changed email to e-mail
Deleted white spaces
Deleted white spaces
Merge pull request #1618 from Urs-Bruelhart/patch-7

Deleted white spaces
Merge pull request #1615 from Urs-Bruelhart/patch-4

Changed email to e-mail
Merge pull request #1614 from Urs-Bruelhart/patch-3

Changed email to e-mail
Merge pull request #1613 from Urs-Bruelhart/patch-2

Changed email to e-mail