Add time since unplugged feature
Add option to display temperature in degrees Fahrenheit
Added the option of white text time in the menu bar

I use the menu bar theme called Obsidian to make my menu bar black.  So I added a toggle with the option to make the time shown to the right of the battery white (the battery is automatically themed by Obsidian).

Signed-off-by: Johnny <Johnny.Slagle@gmail.com>
Merge branch 'time-since-unplugged' of https://github.com/alexanderad/Battery-Time-Remaining into alexanderad-time-since-unplugged
Fix previous merge commit
Merge #62
Fix previous merge commit.
Merge conflict #64
Fix previous merge commit
Fix #51, option to hide icon and fix #55, option to show as per cent
Update readme and year
Merge 2.0