Variable unique prefix lengths for seed
Remove iostream header put in during testing
Added unit test. Fails for Japanese for some reason.
Merge pull request #176

b94b8cd Added unit test. Fails for Japanese for some reason. (Oran Juice)
4c8a628 Remove iostream header put in during testing (Oran Juice)
9875f5b Variable unique prefix lengths for seed (Oran Juice)