fixing bugs
Better output for media. Visualizing knockouts high-level API
Merge branch 'devel' into multiprocess_notebook

Conflicts:
	cameo/flux_analysis/simulation.py
	cameo/solver_based_model.py
	cameo/strain_design/heuristic/multiprocess/__init__.py
	cameo/strain_design/heuristic/multiprocess/observers.py
Fix merging issues
Give the possibility to define the number of islands
fixed bugs on pickle info