minor changes
Putting galapagos version into output file
mask images are now saved in binary format to save disk space.
updates version number to 2.1.6
output table now also includes potential additional sextractor values.
The code works with a changed gala.param file, as long as the necessary columns are included, anyway. Now the output tabel contains those, too.
added many promised features which were not available yet due to hard wired setups.

It's now possible to run B.D with higher degree of freedom than SS fits.
Bulge & Disk can have different degrees of freedom in non-obvious parameters (x,y,ar,PA)
If DOF of fit parameter in B.D fit is 1, Galapagos now makes sure that input values are homogeneous, so it doesn't keep the offsets between bands (from SS fit).
new gala version number 2.1.6
Merge branch 'develop'