Bump version number to 3.0.

Change-Id: Ia80e6039a1a08375834a7b4581d03f24cf8dcc53
Reviewed-on: https://git-ccr-1.devtools.intel.com/gerrit/32204
Reviewed-by: Zhang, Wenjie <[email protected]>
Tested-by: Zhang, Wenjie <[email protected]>

Author: jianjunz

peerserver.js

@@ -95,6 +95,8 @@ function authorization(socket, next){
   switch(clientVersion){
     case '2.5':
     case '2.8':
+    case '2.8.1':
+    case '3.0':
       // socket.user stores session related information.
       if(token){
         validateUser(token, function(uid){  // Validate user's token successfully.