Ported onos-iterm-* commands to work with the v3.* of iTerm2.

Change-Id: I7a889fb67f56d6958c47a1bd3841b96b9b4b2141
diff --git a/tools/test/bin/onos-iterm-cli b/tools/test/bin/onos-iterm-cli
index add607b..02f82e9 100755
--- a/tools/test/bin/onos-iterm-cli
+++ b/tools/test/bin/onos-iterm-cli
@@ -12,13 +12,13 @@
   set cellName to \"$cellName\"
   set paneCount to $nodeCount
 
-  set theTerm to (make new terminal)
+  set theTerm to (create window with default profile)
 
   tell theTerm
-    set number of columns to 292
-    set number of rows to 24
     launch session \"Default\"
     tell the current session
+      set columns to 256
+      set rows to 24
       set name to \"ONOS Shell 1\"
       write text \"cell \" & cellName
       write text \"oi 1 && clear && echo Node \$OCI\"