user tests
validations for name length and email format
some user tests
user validations and tests
user email uniqueness and tests
Update README.md

added link to heroku
userille password digest, sessionit, kirjautuminen toimii
[navbar] lisätty user dropdown, logout placeholder
[navbar] signout toimii
[navbar] kirjautuminen
Merge branch 'develop'
[users] rekisteröitymisnappula linkiksi
[users] luontiformi
[locales] salasanan virheilmo