Added HistogramGeneratorProtecedUpdateMethodDoingPublic Class in 
package sim.util.media.chart
Changed update() to callProtectedUpdateFromHistGen() in 
FinancialModelWithUI class
Full description in HistogramGeneratorProtecedUpdateMethodDoingPublic
Class
Change-Id: I15b0a9e71c7b0aa5c4f104f9e629bcc6a6770e3f