patch 7.4.1435

Problem:    It is confusing that ch_sendexpr() and ch_sendraw() wait for a
            response.
Solution:   Add ch_evalexpr() and ch_evalraw().

src/version.c

@@ -743,6 +743,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1435,
 /**/
     1434,
 /**/