Rename ConnParams to ClientParams

Now that we've split out server state to ServerParams, ConnParams
only contains state for a client. Rename the class and variables
to reflect this.
diff --git a/common/rfb/SMsgHandler.h b/common/rfb/SMsgHandler.h
index 749f056..d654801 100644
--- a/common/rfb/SMsgHandler.h
+++ b/common/rfb/SMsgHandler.h
@@ -25,7 +25,7 @@
 
 #include <rdr/types.h>
 #include <rfb/PixelFormat.h>
-#include <rfb/ConnParams.h>
+#include <rfb/ClientParams.h>
 #include <rfb/InputHandler.h>
 #include <rfb/ScreenSet.h>
 
@@ -85,7 +85,7 @@
     // handler will send a pseudo-rect back, signalling server support.
     virtual void supportsQEMUKeyEvent();
 
-    ConnParams cp;
+    ClientParams client;
   };
 }
 #endif