Upgrade to node-gdal 0.9.1

[springmeyer]

New node-gdal is out using GDAL 2.0.2 with various bug fixes: notably no longer crashes on GPX files with the <time> element.

TODO:

• [x] then tagging party to get all modules on node-gdal 0.9.x - mapnik-omnivore and friends.

 - bump `gdal` in: deps that depend on it:
   - `wmtiff`
   - `srs`
   - `wmshp`
   - `bytetiff`
 - bump deps that depend indirectly:
   - `preprocessorcerer`
   - `mapnik-omnivore`
 - bump `mapnik-omnivore` in:
   - `tilelive-omnivore`
   - `happytiff`
 - bump `tilelive-omnivore` in `mapbox-upload-validate`
 - bump `mapbox-upload-validate` and `tilelive-omnivore` in `mapbox-tile-copy`

[andrewgoodchild]

+1 on this. I am having trouble installing node-gdal 0.8 on my machine as it fails when node-pre-gyp tries to bring in the dependencies it needs. node-gdal 0.9.2 on the other hand installs without a hitch.

[GretaCB]

Done