Major Changes

MOSFIRE improvements:
- improved frame typing
- ingestion of slitmask metadata for MOSFIRE with association of extracted spectra to object name and coordinates
- extraction of undetected objects
- incorporates dither pattern from file headers
Implements new Mark4 detector for Keck/LRISr; selected as the keck_lris_red_mark4 "spectrograph"

Minor Changes

Introduces pypeit_parse_calib_id script
Throw a warning if the chosen spectrograph has a header which does not match expectation
Pypeit can now read (currently for Keck DEIMOS only) the list of arc lamps from the header and use it for wavelength calibration.
Allow one to restrict the wavelength range of the arxiv template
Set DEIMOS FWHM default to 10 pixels
Fixed a bug in HolyGrail that did not allow for sigdetect and rms_wavelength to be slit dependent lists.