Add error handling to the non-converging edge case for random distribution functions

[jaketrookman]

We return the value of -1 if there is no convergence of a number trying to be generated by the different random distribution functions. These cases are possible, although extremely unlikely. either an error should be thrown or a value in the distribution should be generated.

return -1.0; // we failed 100 times in a row which should practically never happen