Undefined index weight fixed

if index is undefined just set to default 0
Updated to 3.7.1

Updated to latest PayPal Module
Merged changes from 0.7.2 bankwire
SOFORTBANKING updated to 2.4

updated to 2.4
Initial Ogone Version

Added EU_Legal dependent stuff.
added Fancybox Option to Backend to enable it shipping link
adapted latest version
Readded redirect (got lost)
Merge pull request #7 from BluTiGeS/dev

New Ogone Module added