Astronomy Picture of the Day APOD by The Trav

Your New Tab page will now be the Astronomy Picture of the Day (APOD)! Your top sites are shown in the top left of the page to maintain some usefulness from the default new tab screen.

APOD by The Trav has the following features:
* Use the options in the menu bar to set "Today" or a "Random" APOD on new tab.
* Save your favorite APOD's for viewing again with the "Save Favorites" button at the bottom right.
* Use the "Learn More" tabs on certain APOD's to learn about the celestial objects shown!
* Toggle through the history of viewed images with the Left and Right arrow keys.

Navigation shortcuts:
* Random APOD - 'r'
* Today's APOD - 't'
* Previous Day APOD - 'j'
* Next Day APOD - 'k'

Tab Shortcuts:
* Toggle Explanation - 'e'
* Toggle Favorites - 'f'

Permissions explanation:

- TopSites Permission is simply to show you your top sites in the top left of the page.

- Storage Permissions are used to save your Favorites.