improved username alternative function with random number generator.
Merge pull request #24 from atarr2/dev

Merge pull request #23 from atarr2/username_alternative
Merge branch 'dev' of https://github.com/atarr2/Phase-Zero into username_alternative
Merge branch 'username_alternative' of https://github.com/atarr2/Phase-Zero into username_alternative
Merge pull request #25 from atarr2/username_alternative

Username alternative