[connectionagent] fix bug where notification was sent at wrong time.

-
[connectionagent] hide the In-progress error.
and disconnect if connect failed.
[connectionagent] remove unused code
[connectionagent] help with autoconnect
after being connected to gprs for a while, connman might take some time
to scan, and/or see new wlan, force the issue with scan timer.
Bump version to 0.9.14