new plotting possibility: full distro as grayscales
new chi2 splitting point for model selection
rebasing after shutdown of machine
Merge branch 'sphere' of github.com:PascalSteger/darcoda into sphere

Conflicts:
	gravlite/programs/plotting/gl_collection.py
added fraction parameter and probability of membership to grd_metalsplit
correct handling of missing data on Fe, Mg in grd_metalsplit
debugged metallicity splitting, ready to plot
plotting with ellipses
plotting obs data, with new full distribution of models as shades
start using plotting with full distribution
not only 1,2 sigma
- store bins for each profile (not optimal, store it in separate file)
additionally,
use more spread to sample from in case of obs runs
before velocity dispersion correction by beta change
started implementing Gaussian sampling of dn/dlogr
collisional system: use new readout routine
added new output files for split pop
renamed nrtol to nztol in disc
renamed output files to include name GravLite
Merge pull request #5 from PascalSteger/sphere

Sphere merge after Gaia challenge 2