Incredibly enough (their program has that type of version numbers
itself!!), Cytoscape will IGNORE any plugin that does not have a version
number like 1.54, 2.3 etc. If you try to use 1.2.43, 3.0.67, etc, it
gives an error that the plugins.xml file is not well formatted and WILL
NOT install the plugin (!!!).
So we sadly come back to version 1.37, even if it is less sensible.