fixed intro
proofread of intro
poi documentation added
changed a bunch of param names when documenting and I broke tests

forgot to change the names in a number of places - yeah unit testing!
example notebook is updated
gah - unit tests stike again (in a good way)
adding anything score and support

unfortunately, this will lower my test coverage
pep8
ok ok, so this actually requires an unreleased geopandas and won't work for travis - for now just leaving it out of testing
Merge pull request #10 from synthicity/docs-updates

Docs updates (and anything score)