Merge remote-tracking branch 'origin/master' into kk_loki
change config for tile builder so that we could add postgres hooks easily. moved parsing of config to respective dataparsing class. changed around binary to be thin shell on top of that. added in tile hierarchy config so that other processes (loki) can access the same config info to know what tiles should be on disk
Merge pull request #51 from mapzen/dwn

Critical fix to graph tile builder
fix merge conflicts
Merge pull request #52 from mapzen/kk_loki

update config for tile cutting
Merge pull request #53 from mapzen/dwn

Fix tile cache.
fix up missing args on pointll constructor with provided ll, make distance approximator member methods static, add tests to prove it all works
Merge pull request #54 from mapzen/kk_loki

pointll constructor with args was not filled out
Fix edge vectors. Was seeing corruption of the Nodes in the map
until started using an allocated vector.