firmware_170207
===============
- 3 combos for reset to choose in INI. Option to disable Keyrah customizations.
- More noticeable LED blinking while firmware update.
- Disable OSD on/off action if OSD button has been used for scandoubler toggle.
- Use user button while keeping OSD button pressed to switch between RGB and YPbPr modes.
- INI option to preserve choosen mode (YPbPr/Scandoubler) between cores.
