Merge pull request #5 from bbrodriges/master

further speed up

Merge pull request #4 from bbrodriges/master

much much faster uuid checks

Merge pull request #3 from MonkSunBoy/emailOpt

Optimize the performance of character comparison

refactored based on reddit feedback

https://www.reddit.com/r/golang/comments/53mmkf/micro_check_library_in_golang/