Your ROOT_URL in app.ini is http://git.osmesh.ru/ but you are visiting https://git.osmesh.ru/MOS/OpenBoard/src/commit/1ef73a70b87edb6eb6b065014b1a68c8fde2d2e2/resources/linux
You should set ROOT_URL correctly, otherwise the web may not work correctly.
- Qt plugins and libraries (and associated files) bundled only if necessary
- Dependencies corrected (for Ubuntu 14.04 and 16.04, at least),
mostly manually for now
- run.sh sets Qt plugin path environment variable (=> qt.conf
no longer needed; removed)