added user validations, edited ethnicities migration
added validations to mytale model
added password length validation to user model
edited name validation
Merge pull request #19 from feministy/validations

validations on models (user, mytales)
Grabbing vlaidations from master branch
Merge branch 'master' of https://github.com/feministy/littlebooks into homepage

a the commit.
fix broken user validation for email that was preventing rendering
setup different views for logged in and out users with partial menus
changed redirects for user#create