Basic material settings theme on Lollipop.

Added option to show current time overlay on Daydream (as requested by +tom bones):

• Consider this a beta option for now and please let me know if something doesn’t look right.
• Choose between 24 and 12 hour formats.
• Displayed time slowly moves up and down a bit to avoid upsetting amoled displays.

Squeezed the file size down a bit.