docs: primarily refer to schannel as WinSSL

docs/FAQ

@@ -422,7 +422,7 @@ FAQ
 
   curl can be built to use one of the following SSL alternatives: OpenSSL,
   GnuTLS, yassl, NSS, PolarSSL, axTLS, Secure Transport (native iOS/OS X),
-  schannel (native Windows) or qssl (native IBM i). They all have their pros
+  WinSSL (native Windows) or qssl (native IBM i). They all have their pros
   and cons, and we try to maintain a comparison of them here:
   http://curl.haxx.se/docs/ssl-compared.html
 

docs/FEATURES

@@ -176,14 +176,14 @@ IMAPS (*1)
 FOOTNOTES
 =========
 
-  *1 = requires OpenSSL, GnuTLS, NSS, yassl, axTLS, PolarSSL, schannel (native
+  *1 = requires OpenSSL, GnuTLS, NSS, yassl, axTLS, PolarSSL, WinSSL (native
        Windows), Secure Transport (native iOS/OS X) or qssl (native IBM i)
   *2 = requires OpenLDAP
   *3 = requires a GSSAPI-compliant library, such as Heimdal or similar
   *4 = requires FBopenssl
   *5 = requires a krb4 library, such as the MIT one or similar
   *6 = requires c-ares
-  *7 = requires OpenSSL, NSS, qssl, schannel or Secure Transport; GnuTLS, for
+  *7 = requires OpenSSL, NSS, qssl, WinSSL or Secure Transport; GnuTLS, for
        example, only supports SSLv3 and TLSv1
   *8 = requires libssh2
   *9 = requires OpenSSL, GnuTLS, NSS, yassl, Secure Transport or SSPI (native

docs/KNOWN_BUGS

@@ -69,12 +69,12 @@ may have been fixed since this was written!
   option as for all other operating systems.
 
 75. NTLM authentication involving unicode user name or password only works
-  properly if built with UNICODE defined together with the schannel/winssl
+  properly if built with UNICODE defined together with the WinSSL/schannel
   backend. The original problem was mentioned in:
   http://curl.haxx.se/mail/lib-2009-10/0024.html
   http://curl.haxx.se/bug/view.cgi?id=896
 
-  The schannel version verified to work as mentioned in
+  The WinSSL/schannel version verified to work as mentioned in
   http://curl.haxx.se/mail/lib-2012-07/0073.html
 
 73. if a connection is made to a FTP server but the server then just never