Add Marsaglias Ziggurat algorithm
Update AUTHORS.md
Fix typo in Makoto Matsumotos name
Import math functions from scala.math instead of java.lang.Math
Move code for MATLAB generator from Ziggurat to example/ZigguratGenerator
Merge pull request #266 from dusank/topic/Ziggurat

Add Marsaglias and Tsangs Ziggurat algorithm