Fix warning on auth
Small grammer correction
typo: forgotten to close a ?>

some code snippet was missing a PHP closing tag
Merge pull request #467 from gasp/patch-1

typo: forgotten to close a ?>
Add a darker red outline on header button.
Fix typo in font name.
Remove outdated function reference
Fixed code example
Update and expand docs on auth.
Added info about automatic 'tel' and 'email' type input elements generation
Added info about new AuthComponent::redirectUrl()
fix formatting
Updating navbar
Fixed example to avoid strict messages