Added lost Metabolite import from cobrapy
Working pathway predictor
SolverBasedModel passes str descriptions correctly on to cobrapy.core.Model.Model
Merge branch 'devel' into predict_pathways
Preliminary universal reaction database (from metanetx)
Make sure exchanges are able to secret in universal reaction model
Add universal reaction database
Exclude .vagrant in .gitignore
The metanetx parser stores now everything (model, chem_prop etc.) in a pickled dict
Removed a superfluous sanitation rule
Added a custom progressbar widget
Reaction has flux and reduced_cost attributes now. Solution and LazySolution have been refactored to use those.
Experimental high-level api.design function (only pathway predictions for now).