Additional Star Systems/Scenarios

[pshinghal]

Binary System with a moon making a figure of eight.
Slingshot effect (Will probably require two heavy bodies)

Add Moons
Eclipses

[jcheng31]

Analemma is another one, though I think that could be pushed either to a later Release, or made into a separate app altogether (i.e. fork ISAAC and change the UI for Analemmas, keeping ISAAC "Original" for star systems.)

[pshinghal]

Done.

[jcheng31]

Removed from Milestone 2.