#145 Use email to login
#145 Validate username: Do not include special charater
#145 Use check_email(), remove new language strings
#145 Make login-by-email works correctly
Merge pull request #146 from kimkha/newlogin

Merge: Login with registered email
Switch to /n EOL like unix
IRC notification for travis
#145 Check if email is existed
#145 Add LIMIT=1 in query for login
Merge pull request #149 from kimkha/newlogin

Login with registered email
Update registration.php