reverse overide behaviour on file, http and email. Node properties now

have priority. Warn user if msg.property tries to override. 
Warning should  be removed at next major verion bump.

nodes/core/social/61-email.html

@@ -87,7 +87,7 @@
         defaults: {
             server: {value:"smtp.gmail.com",required:true},
             port: {value:"465",required:true},
-            name: {value:"",required:true},
+            name: {value:""},
             dname: {value:""}
         },
         credentials: {
@@ -95,7 +95,6 @@
             password: {type: "password"},
             global: { type:"boolean"}
         },
-
         inputs:1,
         outputs:0,
         icon: "envelope.png",