valhalla/mjolnir — pull request #12 by kevinkreiser (2014-12-23 20:45:12+00:00)
Title: use updated tilehierarchy within pbfgraph builder and hierarchybuilder

also added some ignores to git.

note the refactor greatly simplified hierarchybuilder and i think i have it setup now that @dnesbitt61 can plug in the rest of the code he's got sketched up here