Logger should mimic the terminal unless overridden
Add workers parameter for parmap
Compute D-functions only if corresponding coefficients are non-zero
Fix docs
Update tests
Create a library of particles
Remove matplotlib toolbar
Sketch detached multiprocessing plotting. Spoiler: does not work on OSX
Reorganize
Turn Interaction into Integral and create a wrapper for automatic Integral generation
Use the particle library
Now we can compute things