* Correction LDAP username validation
As https://msdn.microsoft.com/en-us/library/aa366101(v=vs.85).aspx describe spaces should not be in start or at the end of username but they can be inside the username. So please check my solution for it.
* Check for zero length passwords in LDAP module.
According to https://tools.ietf.org/search/rfc4513#section-5.1.2 LDAP client should always check before bind whether a password is an empty value. There are at least one LDAP implementation which does not return error if you try to bind with DN set and empty password - AD.
* Clearing the login/email spaces at the [start/end]
* Write LDAP, SMTP, PAM, DLDAP back to all uppercase
* Fix type in unused constant name
* Other MixCased fixes
* Complete MixerCasing of template constants
* Re uppercase LTS and LDAPS suffixes
* Uppercase JSON suffix in constant names
* Proper case LoginNoType
* Prefix unexported template path constants with "tpl"
