Task #1418: Reservations and Maintenance blocks are filtered from the lists. Occasionally those blocks had the wrong state causing to popup in the lists the MACScheduler maintains.

Task #4074: Fixed a comparison, the last timestamp was never processed, (eventually) leading to a division by zero in the single timeslot case.

Changed local memory usage.

Put error code in message if error code not recognized.

Do not throw cl::Error from callback function through OpenCL library.

Task #3403: Fix to allow images with GLAT and GLON wcs; fix when equinox is taken from epoch keyword.

Fixed typo.

Task #3996: Merge from task branch. Add node duration to xml logging. Export xml logging to seperate xml.logfile instead of normal logfile. 

Simplification.

because the framework now sets self.outputs['returncode'].

Task #4052: Default settings (for now still in the tasks.cfg.in file) were set for the demix_always and demix_if_needed keys.