Added the very nice CollapsiblePanel by, Ruth Isserlin, Daniele Merico,
Oliver Stueker, Gary D. Bader. The control is part of the Cytoscape
plugin (app) EnrichmentMap http://baderlab.org/Software/EnrichmentMap
and we can use it more estensively than now: for the moment it just
makes the "remote" panel (visible only if the "Developer" option in
~/.animo/animo-configuration.xml is set to true) collapsible, to take up
less space in the already cluttered control panel. Probably we can do
the same for the average/overlay controls if multiple simulations are
not required.