OP-1174 OP-1131 moved firmware version check from uploader gadget to uploader plugin.
This ensures that the check is always done even if the uploader gadget is not displayed.
OP-1174 OP-1131 moved firmware version check from uploader gadget to uploader plugin - removed test code
OP-1174 OP-1285 Fixed uploader gadget button tooltip. Was wrongly indicating that the erase feature is available from BL version 4 and earlier instead of later.