OS X obnoxiously generates .DS_Store files in directories. Added them to .gitignore
Moved email, nickname and password validation to separate methods.
Added unit tests for refactored methods
Resolved testing errors
Added newlines at the end of the file
Merge pull request #93 from danmcginnis/betterGitignore

OS X obnoxiously generates .DS_Store files in directories. Added to .gitignore
Merge pull request #95 from zeldanerd24/validation-refactoring

Resolves #90