Add doc for Proxy support

Author: arnaud-lech

quickfixj-core/src/main/doc/usermanual/usage/configuration.html

@@ -626,6 +626,58 @@ <H3>QuickFIX Settings</H3>
     <TD><a href="https://docs.oracle.com/javase/6/docs/technotes/guides/security/SunProviders.html">Java default cipher suites</a></TD>
   </TR>
 
+  <TR ALIGN="center" VALIGN="middle">
+    <TD COLSPAN="4" class="subsection"><A NAME="Security">Socks Proxy Options (Initiator only)</A></TD>
+  </TR>
+  <TR ALIGN="left" VALIGN="middle">
+    <TD valign="top"> <I>ProxyType</I></TD>
+    <TD>Proxy type</TD>
+    <TD>http<BR>socks</TD>
+    <TD></TD>
+  </TR>
+  <TR ALIGN="left" VALIGN="middle">
+    <TD valign="top"> <I>ProxyVersion</I></TD>
+    <TD>Proxy HTTP or Socks version to use</TD>
+    <TD>For socks: 4, 4a or 5 <BR> For http: 1.0 or 1.1</TD>
+    <TD>For socks:<BR>For http: 1.0</TD>
+  </TR>
+  <TR ALIGN="left" VALIGN="middle">
+    <TD valign="top"> <I>ProxyHost</I></TD>
+    <TD>Proxy server hostname or IP</TD>
+    <TD>valid IP address in the format of x.x.x.x or a domain name</TD>
+    <TD></TD>
+  </TR>
+  <TR ALIGN="left" VALIGN="middle">
+    <TD valign="top"> <I>ProxyPort</I></TD>
+    <TD>Proxy server port</TD>
+    <TD>positive integer</TD>
+    <TD></TD>
+  </TR>
+  <TR ALIGN="left" VALIGN="middle">
+    <TD valign="top"> <I>ProxyUser</I></TD>
+    <TD>Proxy user</TD>
+    <TD></TD>
+    <TD></TD>
+  </TR>
+  <TR ALIGN="left" VALIGN="middle">
+    <TD valign="top"> <I>ProxyPassword</I></TD>
+    <TD>Proxy password</TD>
+    <TD></TD>
+    <TD></TD>
+  </TR>
+  <TR ALIGN="left" VALIGN="middle">
+    <TD valign="top"> <I>ProxyDomain</I></TD>
+    <TD>Proxy domain (For http proxy)</TD>
+    <TD></TD>
+    <TD></TD>
+  </TR>
+  <TR ALIGN="left" VALIGN="middle">
+    <TD valign="top"> <I>ProxyWorkstation</I></TD>
+    <TD>Proxy workstation (For http proxy)</TD>
+    <TD></TD>
+    <TD></TD>
+  </TR>
+
   <TR ALIGN="center" VALIGN="middle">
     <TD COLSPAN="4" class="subsection"><A NAME="Socket">Socket Options (Acceptor or Initiator)</A></TD>
   </TR>