Always log chosen security type

It's often useful to see if encryption was used, and how the user
authenticated (if at all).

common/rfb/CConnection.cxx

@@ -181,7 +181,7 @@ void CConnection::processSecurityTypesMsg()
     if (secType != secTypeInvalid) {
       os->writeU8(secType);
       os->flush();
-      vlog.debug("Choosing security type %s(%d)",secTypeName(secType),secType);
+      vlog.info("Choosing security type %s(%d)",secTypeName(secType),secType);
     }
   }
 

common/rfb/CSecurityVeNCrypt.cxx

@@ -164,7 +164,7 @@ bool CSecurityVeNCrypt::processMsg(CConnection* cc)
 	  break;
       }
 
-      vlog.debug("Choosing security type %s (%d)", secTypeName(chosenType),
+      vlog.info("Choosing security type %s (%d)", secTypeName(chosenType),
 		 chosenType);
 
       /* Set up the stack according to the chosen type: */

common/rfb/SSecurityVeNCrypt.cxx

@@ -157,7 +157,7 @@ bool SSecurityVeNCrypt::processMsg(SConnection* sc)
     if (!haveChosenType)
       chosenType = secTypeInvalid;
 
-    vlog.debug("Choosing security type %s (%d)", secTypeName(chosenType),
+    vlog.info("Client requests security type %s (%d)", secTypeName(chosenType),
 	       chosenType);
 
     /* Set up the stack according to the chosen type */