Flight:uavobjectmanager relocate new instance callback to proper location
GSC:modeluavoproxy delay new object instances so that session can keep up
GCS:telemetry monitor delay new instances present on hw setting

Only during object fetching, this is a workaround for a race condition
between the telemetry and the gui thread which would end up with the
uavo browser not being updated properly.
GCS:modeluavoproxy modelToObjects-return success and signal progress
GCS:pathplanner.ui added progressbar and status label
GCS:pathplannergadgetwidget handle progress bar and status label
Merge pull request #1175 from guilhermito/session_fixes

Session fixes
Merge pull request #1176 from guilhermito/waypoint_manager_feedback

Waypoint manager feedback
Update tools.mk

Download directory/file changed for openssl windows version.
PIOS COM: make the interface thread safe

Currently the interface to the FIFO buffer is not thread
safe for multiple threads sending and receiving. This adds
a semaphore on those interfaces.
Merge pull request #1180 from joergrohde/patch-1

Update tools.mk
Android: add serial support for FTDI_FT230X

This is the chipset used in the 3dr radio v2 and should
add support for that radio.
Merge pull request #1187 from peabody124/ftdi_pid

Android: add serial support for FTDI_FT230X
Merge pull request #1181 from peabody124/pios_com_thread

PIOS COM: make the interface thread safe