Changed remaining text vars from Product Feeds to Feeds.

Applied DB prefix fix to upgrade script.

Merge branch 'master' of https://github.com/opencart/opencart

decided to keep the left column mini menu

Updated language string key to match new Daniels one from the languag…

…e file.

Changed text string to fix within design limits.

https://opencart.atlassian.net/browse/OC-1658

Added pre events.

Added version release number to 2.0.0.0a1 - now set as initial alpha …

…version release.

Updated version number to exclude _rc

Updated version number to remove the RC part.