Change url match to only act on netflix playback screen rather than entire site.
Add cursor hide after 1 second.
Fix options. It appears that the extension options was saving to a different local storage than the main content script. Change over to using chrome specific extension storage functions.

Add option to hide mouse pointer when not moving. While the netflix playback engine does usually hide the cursor when the controls are hidden, this only appears to work after the mouse has been moved initially.