Add rule to create GIT tag

Bump version

Add NEWS.md

Cleanup formatting rules

Define M_PI if not done in <math.h>

Fix Yorick URL

Fix Makefile

Merge pull request #1 from FerreolS/patch-1

Suppress fitsio dependency

Wrap line

Update Emacs settings

Remove roughness regularization

Add hyperbolic loss function

Add Huber loss and L1-L2 white regularization

Replace abs2 function.