Trying to resolve the exception when launching LX on Linux.

Wrapped Ligand Explorer main into EventQueue.invokeLater

See: http://stackoverflow.com/questions/5060645/strange-swing-error-when-from-calling-removeall-on-subclass-of-jpanel

git-svn-id: file:///home/svn-repositories/biojava/RCSB Viewers/trunk@10032 7c6358e6-4a41-0410-a743-a5b2a554c398