Add ScreenReaderDriver.lastResult which can later be used by derived drivers
Don't create a COM instance if one already exists
End comments with a period. Most important change ever
Don't crash COM-based drivers if there's no controller
Reorder SAPI flags
Fix resource leak in ZoomText driver
Suppress warning C6387 in SAPI driver when analyzing
Remove TODO file
Revert ScreenReaderDriver.lastResult addition for now, needs more testing