DOCS: Added LDAP to the CURLOPT_URL section

sftp://ssh.example.com/~/Documents/ - This requests a directory listing

of the Documents directory under the user's home directory

.B LDAP

The path part of a LDAP request can be used to specify the: Distinguished

Name, Attributes, Scope, Filter and Extension for an LDAP search. Each field

is separated by a question mark and when that field is not required an empty

string with the question mark separator should be included.

ldap://ldap.example.com/o=My%20Organisation - This will perform a LDAP search

with the DN as My Organisation.

ldap://ldap.example.com/o=My%20Organisation?postalAddress - This will perform

the same search but will only return postalAddress attributes.

ldap://ldap.example.com/?rootDomainNamingContext - This specifies an empty DN

and requests information about the rootDomainNamingContext attribute for an

Active Directory server.

For more information about the individual components of an LDAP URL please

see RFC-4516.

.B NOTES

Starting with version 7.20.0, the fragment part of the URI will not be sent as