rename geojson file to have .geojson extension
Various fixes to GeoJSON output
add test for reducing precision - refs #155
Merge branch 'master' of github.com:mapnik/node-mapnik into vector-tile
Merge pull request #156 from mapnik/vector-tile

Vector tile support
use latest mapnik-vector-tile@0.0.5
vector tile setData failure state tests
readme touchups now that we are at node-mapnik v1.0.x
if parsing protobuf fails (setData) return err in callback rather than a boolean in second arg
touchup gitignore - no longer a need for npmignore
update changelog for v1.0.0 release
handle exception in obtaining a memory datasource featureset
impl mapnik.Image.fromBytes to allow reading images from in memory node::Buffer - closes #147
ensure reading invalid images from buffers properly throw
fix indentation
async versions of image.pre/demultiply()
async versions of Image.fromBytes and Image.open - closes #157
add support for alpha and image filters in mapnik.Image.composite - closes #158
support applying offsets for relative positioning of the mask image
fix parsing of dy from user options for correct composite offsets