WorldBank-Transport/open-transit-indicators — pull request #275 by notthatbreezy (2014-10-09 20:38:49+00:00)
Title: Feature/accessibility indicator

This adds an accessibility calculator for total population and low income.

The following changes are also relevant:
- stop buffers are now initially calculated in postgres and then combined using JTS' `CascadedPolygonUnion` for speed/efficiency
- A new demographics param is added
- Parameters now live in their own directory as do calculators

Working on getting tests to added and running, but the rest of the code is open for comment.