Also added selection from tree view for downloading

Also modified protocol to better support eof’s on list and read
commands.

I was unsure how to update the QwtPlotPrintFilter code, so I just commented it out with a FIXME.

Also deleted invalid line drawing options.

Fix HIL link reconnect issues due to missing threading flag usage, warn user about missing config and take him to config view if necessary

Fix HIL link reconnect issues due to missing threading flag usage, warn user about missing config and take him to config view if necessary

Most math and backend storage was floats anyways, so most of these changes just half the data copied during function calls without reducing precision.

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>

Replaced with only 1 output message with the result of the first serial port scan.

In the logplayer, the data stream is read ahead for messages, which is used to determine the size of the output bytearrays. Previously, this wasn't done correctly resulting in non-ideal behavior. Now, the next message is scanned properly, so the only bytearrays that are emitted from QGCMAVLinkLogPlayer are MAVLink messages in their entirety. This also has the benefit of skipping invalid/corrupted messages in the log that's being played back.