GPS Module, Extensions for handling other sentences, and u-blox NEO-6M GPS receiver

Looking into the implementation of the GPS module to extend it with a handler for other sentences - handleGPSLine()-methods - was a bit sobering... to say the least. My basic expectation was to find an externally extensible sentence filter with hooks and registration for other line handlers, or at least a way to override the already implemented, default GPS line handler. Unfortunately, the module is built in a way that ,gives no access what so ever for modifications or extensions. ;(

Why not extend the GPS module itself to fix this, and put in a pull request?

Modifying the module code would be a much more graceful solution, I'd say.