DR9.4 -- for Legacy Survey DR9 processing

One commit after DR9.3 -- improving handling of flagging hitting parameter limits during constrained optimization.

Tag for LegacySurvey.org DR8

Minor changes, tagged for LegacySurvey.org Data Release 8.

Tag for LegacySurvey.org Data Release 7

Only minor fixes since dr6.2.

Tag for LegacySurvey.org Data Release 6

Fix for correlate7f assertion on images larger than the work array

Tag for LegacySurvey.org Data Release 6

dr6.1

Tag of convenience for LegacySurvey.org Data Release 6.

Tag for LegacySurvey.org Data Release 6

• Intel Dungeon hackfest speedups to Lanczos interpolation and galaxy Fourier transforms
• py3 improvements
• PEP8 fixes

Tag for LegacySurvey.org Data Release 5

Compared to dr5.1, this fixes a Python3 import error when Ceres is used, and also updates the C modules to eliminate use of deprecated functions in the Numpy API as of Numpy 1.7.

Tag for LegacySurvey.org Data Release 5

This is minor tweak over dr5.0, fixing the setup.py script.

Tag for LegacySurvey.org Data Release 5

• Lanczos-shift galaxy models, rather than using Fourier phase shift
• Make MJD values 64-bit
• more python3 compatibility
• setup.py work (should now be pip-installable from github)
• travis builds for py3 and py2
• add MogParam class and galaxy classes that exposure MoG components

dr4.1: New tag for Legacy Survey DR4.

- Add unWISE forced photometry psf_broadening option.