Remove the possibility to use the same module several times. Simplification of the code ensues. Now sed.info keys are prefixed with the characteristic of the module (stellar, nebular, etc.).

glob is imported in the pcigale/session/configuration.py to allow its use in
the configuration file (with eval).

TODO: write a new configuration pattern to add several files with something
like "files *.fits".

Implement the nebular continuum emission. This has required some refactoring to have some homogeneous naming.

There is maybe a bug triggering the display of the best model figure in
a matplotlib interactive window.

Use a simplified gaussian kernel density estimation for computing the
probability density functions.

Update with Inoue's latest models computed with a BC03 stellar continuum. 124 lines are now included from the FUV to the FIR.

The team will use the projets.lam.fr issue tracker instead.

Modification to savefluxes to have all the contenct of the sed.info
dictionary in the output table. That means that all the SED created with
the modules must have the same sed.info keys.

For a given observation, taking the least chi-square or the least
reduced chi-square is the same thing.

Start of the rewrite of the psum analysis module in pdf_analysis. The
computation is made avoiding loops by using numpy multidimensional arrays.

Use np.max/np.min instead of the built-in functions. This results in a factor ~2 speedup to compute the fluxes.

Maybe we should change the name.

To make it easy to save the best models table.

Factor 2 speedup to compute the IGM attenuation. This is done by doing some computations only on the part of the SED actually affected by the IGM. This could still be improved.

Add redshifting and IGM attenuation modules (make psum use them).
Remove atpy dependency and use astropy instead.
Some modification to make the code Python 3 compatible.

Correction of a problem spotted by Médéric, basestring does not exists
in Python 3.

Make the source code more compatible with Python 3. As far as I understand the documentation, this should be harmless for Python 2.

and remove old igmattenuation code.

Implementation of one module for the redshifting and one for the IGM
attenuation. For now, the IGM module only implements the Meskin (2006)
attenuation; alternative attenuation law can be added with a parameter
in the module to choose which one to apply.