Changed 'You are already signed in.' warning alert to 'Welcome Home'
Fixed issue with 'You are already signed in.' displaying when language setting is not English
Changed to one line if statement
Removed extra line in code
Add custom route for authenticated users to prevent 'You are already signed in' warning message from popping up
Merge pull request #822 from chrisjeon/already-signed-in-warning-to-welcome-home

Don't show "already signed in" message