Osmnx

- turn off x- and y-axes to improve plotting appearance
- make floating-point precision and rounding more sensible
- improve OS path handling cross-platform
- replace great-circle distance calculator with haversine
- add access filter as configurable setting
- improve performance of inducing subgraphs
- fix utils.get_largest_component for networkx 2.2 compatibility
- fix config settings namespacing

- compatibility with networkx 2.1

- fix documentation build
- ignore ways marked access=no

- ability to load a graph from a .osm file
- change datum from NAD83 to WGS84
- make roundabouts one-way
- conformal plotting for unprojected graphs
- fix folium web maps rendering

- migrate to the networkx 2.0 API

- add optional cleaned intersections count to basic stats
- allow circuity to be calculated for projected or unprojected networks
- various code clean-up and refactoring