Bug-fix when using subprocess - an exception was not caught on some machines
Updated syntax of except to not deprecated syntax
Style update, the os.path.join were not used to their full capabilities
First version of BICEP2 likelihood - being tested
New version of bicep2, speed increase
Replaced a warning by a print
All "metavar" converted to "help" for clearer help messages from
`argparse`
Bug-fix in analyze when using a None boundary
Bug-fix, classy_path was sometimes uninitialized
Ignoring custom parameter files
Check for non-positive number of steps in parser
Support of the tilde path in the configuration file
Improved error message in case of failed initialisation, and wrong lkl
Typo in error message
First version of allowing likelihood parameters in param file

This is probably a bit buggy, being tested right now.
Ignoring Makefiles
Added version option
Added argument groups to distinguish better between run and info.
`MultiNest` and `CosmoHammer` moved to the `run` group.
Removed useless comment
Update of the changelog for next release