Revert "[connectionagent] fix connecting after flight mode."

This reverts commit 80d9292a475f6818564ba96cbd75fda0a8002cf1.
[connectionagent] fix connecting after flight mode work better.

also supress the connection dialog for 5 minutes after
flight mode.
This is because often a request will come through
immediately after turning on flight mode.
[connectionagent] bump version to 0.8.6