Add demo for mapping, curation and collaborative work
Add user agreements
Fixes 2 bugs :
infinite loops when missing value in notes
import charge or formula even when the value is empty
Time for importing a sbml file highly reduced by optimizing pubmed web service calls
Correct an issue when exporting a reaction associated to an enzyme not associated to any gene. When there was enzyme associated to a reaction
but without genes behind, it wrote <fbc:geneProductAssociation/> in the SBML, what is not compliant with SBML validator.