Added more Tests
Split geometry.rst into module specific files and also add rsts for new geometry modules
roots allows trig keyword: return cubic roots in terms of cos
Added more tests and changed the name of Plane.equal method to Plane.is_coplanar
Code cleanup
Merge https://github.com/sympy/sympy into plane
Changed a test which resulted in the error
Return TypeError for comparisons, if self is not a real
Remove relational tests
misc
Fix test_relational_noncommutative
Merge pull request #3 from smichr/geom

misc changes
Fix test_inverse_laplace_transform
Merge branch 'master' into I-comp
Fixed issues with the tests
Fix test_partial_simp
Changed map() to list(map())
Added a test and changed list() to list(set())
return S.Zero and other stylistic changes
modify how perpendicular plane is computed