Bug fix that was making the sphinx-build very slow

Bug fix related to pickle mechanism and User definitions

Reduced the size of PDB example file.
Added the generated functional tests for all MDANSE analysis.
Bug fix in spatial density cython file

Improved the generic converter
Reintroduced and refactored rigid-body trajectory analysis
Implemented the dipole autocorrelation function analysis

Many bug fixes related to ud

Update of help text for all analyses.

The temporary job script files are now also saved when running a job
from the GUI

Added a specific logfile for each launched job
Improved the JobControllerPanel
Removed the global logfile toolbar button
Removed the 'info' JobStatus entry
Removed unused Plugin.has_parent method
Bug fixes

Bug fix in FloatConfigurator
Added unit tests
Any error is now caught at the Job level when running a job
Removed unused imports

conflicts
Refactored many GUI related module to make the main app restartable

Reintroduced and refactored several analysis

Fused Configurable and ConfiguratorsDict classes
Improved the docstring of configurators-based classes

reintroduced now