Add `test-driver' to the list of ignored files
Remove outdated copy of `mdate-sh'
Remove 511-character limit on configuration file lines

Tested-by: Kai-Martin Knaak <knaak@iqo.uni-hannover.de>
Remove 509-character limit on configuration values

Tested-by: Kai-Martin Knaak <knaak@iqo.uni-hannover.de>