Number of threads grayed out if GLPK solver...

is selected. Everything grayed out except Stop button and time label
when GDBB running.
ConfigProperties added, Solver Set Up writes...

solver name to file.
MOST "remembers" solver selection...

using config.properties file. If file does not exist, default solver
assumed.
E coli core model added to Model Collection
Fixed bug where it was possible to load an sbml....

file while another sbml file was loading.
added sources file to abide as to by GPL License