Version 1.5.8
Merge pull request #5 from webnsale/master

FIX useless pseudo-prices
UPDATE Price update logging
ADD Item priceless data integrity check
ADD Item priceless data integrity check
ADD Item priceless data integrity check
ADD Single item sync
Merge branch 'master' of github.com:plentymarkets/plentymarkets-shopware-connector
FIX Log identifier
FIX Bundle import for newer version of the bundle plugin
FIX Category sync (denormalization)
FIX shopgate display bug
FIX Variant image relation
FIX Data integrity check
FIX Data integrity check
FIX Data integrity check
FIX Data integrity check
UPDATE Misc (Fix:Item:Detail:Number)
FIX Item Import
FIX Item Import