Merge remote-tracking branch 'origin/dataviz'
Merge remote-tracking branch 'upstream/master'
readme
readme minor fix
print year, readme: output units
merged
move modules into forestcost python package for better namespacing and easier distribution
move xls files
store routing cache files in temporary directory
Numerous changes to routing: func signatures, filter mechanism, ogr safety, expontential bbox
fix readme to reflect new routing API
fix readme to reflect namespace and setup
Merge pull request #20 from Ecotrust/master

Additional changes for forest planner integration