Version used for DR9k

DR9.5.9

Legacy Surveys DR9 tag for DR9k test

Code used for dr9f/g

DR9.3.4

Tag for Legacy Surveys DR9 -- after updating the tractor code to dr9.2

Code used for DR9-SV

dr9e4

Tag for Legacy Surveys DR9e, take 4.

Legacy Surveys DR8

This is the first tag used for DR8 calib (psfex, splinesky) processing.

Code used to produce dr8b

Merge pull request #254 from legacysurvey/ADMblobby

output sweeps file should contain bitmask BRIGHTBLOB

Tag that will handle pre-DR8 calibration files.

#246 will include non backwards-compatible changes to the data model, such that the pipeline will no longer work with old (DR7, DR6, etc.) calibration files. Creating this tag in case we need to run on these old calib files.