reverting back to 1.5.5.1 so i can set a new download
added the link back for custom fields
updated the product count system for the categories
klarna update
Update upload/system/engine/loader.php
session change to avoid an error on some systems
Merge branch 'master' of https://github.com/opencart/opencart
Fixes to Klarna Invoice module.
robot empty fix
upgrade blacklist ip fix
Display actual file and line number where the sql error is occured.

Make a change to display actual file and line number where the sql error is occured.
When there is a sql error it will also display model file name where the error is occured.
Merge pull request #366 from jimymodi/master

Display actual file and line number where the sql error is occured.
Fixed Klarna Account module.
removed // from the redirect in the upgrade script
Klarna Invoice update
updated the upgrade script and language class
language no longer exists when a file can not be found.
Removed unset() for Klarna tax info stored in session.
Merge pull request #367 from martynas-wm/master

Klarna module fixes
Klarna Invoice Fee fix.