Minor changes to documentation.
Minor changes to dataset documentation and examples for googleMap().
Implemented Aaron's fix
Tested fix to issue 180 antiD((r^2-x^2)~x)
Took out seemingly redundant lines in symbolicInt that cause it to give a different from from symbolicAntiD.
Issue 186 fix in documentation
Added simplification of symbolicInt expressions
Merge branch 'beta' of github.com:rpruim/mosaic into beta
Merge branch 'beta' into aggregating
adding Rdname since Rd files can't begin with .