[connectionagent] fix connecting after flight mode.

After flight mode it is ok to conenct to previous connect.

Code removed was for trying to not automatically connect back to
autoconnect service when user disconnected. It didnt work anyway.
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

fix flight mode suppression
Merge pull request #18 from lpotter/master

 [connectionagent] fix connecting after flight mode work better