Going back to less sensible version numbering because of Cytoscape's
 madness. So, the "dev" version will be 2.x instead of 1.1.x.
 Trying to get double values for log-scale reactants, we use the
"double"
 encoding directly with those reactants. Currently not working, because
 not all points in a time series are output by UPPAAL (for no apparent
reason?)
 Also, added an option ("developer" only) to the graph that adds the
 possibility to have thicker axis lines and larger fonts.