account for package renaming hoohah in newer versions of boto
Merge branch 'master' of github.com:migurski/TileStache

Conflicts:
	TileStache/S3.py
patched tilestache-seed to allow for retries and to write failed tile requests to a log file
Stubbed out s3 output option for tilestache-seed.py
Cleaned up multi-cache code a bit to prepare for S3
Instantiating S3 cache provider
GDAL provider: maskband option: generate alpha channel from dataset mask

Add a 'maskband' option to the GDAL dataset provider which, if
specified, gives the 1-based raster band index whose mask should be used
as an alpha channel.

This allows datasets with 'NoData' values to be handled nicely on the
map. It also has the nice side-effect of causing pixels outside of the
raster to become transparent.

Unfortunately this does reduce the efficiency of the provider in that
the raster has to be re-projected twice.
Add Oracle, MySQL, Sqlite support to Vector provider
Re-Add PIL import to Providers.py
Bumped to 1.32.3 with a dumb fix
Fixed imports in mapnik provider and replaced use of mapnik.Envelope (depricated) with mapnik.Box2d.
Correction to example config for Composite provider

Content taken from Goodies/Providers/Composite.py
Support setting id attribute of geojson
Merge branch 'master' of https://github.com/geoiq/TileStache

Conflicts:
	TileStache/Providers.py
Add documentation
Merge branch 'master' of https://github.com/geoiq/TileStache
Removed continent-specific debug prints
Bumped to 1.33.0 with Vector provider support for Spatialite, MySQL and Oracle
Merge branch 'mapnik-fix' of https://github.com/kartena/TileStache
Made mapnik.Envelope/Box2d back-compatible