Retain boxplot for most recent resampling

[garrettgman]

When running samples, have the boxplot and points of the most recent sample stay on the screen instead of fading into a ghost box like the rest.

[garrettgman]

For onesampBootGUI() this can be accomplished by commenting out bootstrapFinalize() in handlerRedraw(). Still need to check whether this will work for all of the other gui's as well.