Add back TCPLinkTest after threading change fixes
Updated for threading changes
Limit time in processEvents

This allows other threads to signal
Modify TCPLinkTest for new threading model
Can't call _socket methods from primary thread
Comments
deleteLater on _socket

This way the delete happens on the right thread.
Merged TCP link unit test
Merge branch 'master' of github.com:mavlink/qgroundcontrol
Merge branch 'master' of github.com:mavlink/qgroundcontrol