Added major moons. Sources:
http://en.wikipedia.org/wiki/List_of_Solar_System_objects_by_size
http://ssd.jpl.nasa.gov/?sat_elem
Cleanup script modified to work with satellites.
Changed coordinate system of satellites from laplace plane to
heliocentric
Merge branch 'master' into satellites
Added mass to satellites.
removed mars satellites due to size
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Merge branch 'master' into satellites
Git removed new tag.
Merge branch 'master' into satellites