Passing parameters QVariantMap across C++ boundary was causing crashes
in Qt due to Qml array bugs. Referencing same Fact* across Qml boundary
in multiple QQuickWidgets caused jScript GC to crash.

Text to speech tweaks

Fix OS X Installer yet again

Unit Test fixes

Will rewrite singleton shutdown in separate pull

Also turn them back on

Although this should theoretically be a no-op it causes a crash in
Windows when running unit tests. Also parent toolbar in constructor.

Tool Bar Tweaks

These tests that make direct calls into the tool bar need to be updated.

Update build requirements for Fedora.

Set new RC_CHAN_CNT param after cal

Text to Speech Tweaks

New, QML based Tool Bar.

Remove old battery estimation cruft

Correct order of rotations to get roll, pitch and yaw corresponding to c...

Correct order of rotations to get roll, pitch and yaw corresponding to classical aeronautics convention and coherent with Fly view

Incorrect height for text area

Catch mag/dpress calibration complete

update README.md

Update Radio Cal trigger