Merge remote-tracking branch 'eepp/v2-qt-dev' into v2-qt-dev
Merge remote-tracking branch 'eepp/v2-qt-dev' into v2-qt-dev
Merge remote-tracking branch 'origin/v2-qt-dev' into v2-qt-dev
Qt: Add preferences dialog

Signed-off-by: Simon Marchi <simon.marchi@ericsson.com>
Qt: Prepare code for use of proxy

Signed-off-by: Simon Marchi <simon.marchi@ericsson.com>