simple enhance and simple bugfix

[asinbow]

1. 1397f15 add node name to text output when ping/stop/restart/reboot.
2. 86210d9 add ft=erlang to templates for vim recognization.
3. e465caf ping result no more simply depends on text output, but return value.

[Vagabond]

What 'bug' is this fixing? I don't have an objection if there's an actual reason for the change.

[asinbow]

please look at #line 139-143

attach)
# Make sure a node IS running
RES=$NODETOOL ping
ES=$?
if [ "$ES" -ne 0 ]; then
...
someone had already use return value($?) instead of text output when pinging before attach.
It's bettter to be the same.
if [ "$ES" -eq 0 ]; then ...
I've made a mistake when use -ne, not -eq.

[dizzyd]

I'm ok with 1397f15 (add more info), but the other two patches I'm not really interested in. If you resubmit with just that one patch, I'll be happy to merge.