Merge pull request #1 from mrh-line/master

Use different URLs, improved error handling.
Improved error handling. Detect failed logins.
Update LBS.lua
Fixed support for multiple saving contracts

After receiving transmissions for one contract go back to overview page
to select the next contract. Function got lost during the last updates.
Merge pull request #2 from chronosox/pr/1

Pr/1
Changes necessary due to update of LBS form
Merge pull request #3 from chronosox/pr/1

Changes necessary due to update of LBS form
Add URL for LBS Bayern.