Update Order.php

Comments added
Update Module.php

Added comments
Update Cart.php

Added comments
Update order_conf.html
Update order_conf.txt
Update invoice.tpl
Update de.php

Customization and some corrections
Update OrderController.php

Added comments
Update ParentOrderController.php

Added comments
Merge pull request #11 from EU-Legal/dev

Second pull request from BLUTIGES
Merge pull request #12 from Nobodaddy/patch-9

Update translation: order_conf.html
Merge pull request #13 from Nobodaddy/patch-10

Update translation:  order_conf.txt
Merge pull request #14 from Nobodaddy/patch-11

Update translation:  invoice.tpl
Merge pull request #15 from Nobodaddy/patch-12

Update translation:  de.php
Merge pull request #17 from EU-Legal/dev

Hipay Merge Pull Request
added trusted shops logo
Revert "added trusted shops logo"

This reverts commit 1ebf65536dd3c109d140c7fd099869c3967446fc.
git merge dev to master
Merge pull request #24 from EU-Legal/master

merge master to dev