Fixed some umask bugs
Fixed some umask bugs

robpvn/Vector-Tile-Research,SEL-Columbia/TileStache,robpvn/Vector-Tile-Research,mapzen/TileStache,moskvax/TileStache,Billups/TileStache,mpuig/TileStache,MetGIS/TileStache,TileStache/TileStache,SEL-Columbia/TileStache,moskvax/TileStache,mpuig/TileStache,TileStache/TileStache,robpvn/Vector-Tile-Research,mapzen/TileStache,jbants/TileStache,Billups/TileStache,TileStache/TileStache,Blechhirn/TileStache,moskvax/TileStache,Blechhirn/TileStache,mojodna/TileStache,Kosta-Github/TileStache,jbants/TileStache,mapzen/TileStache,MetGIS/TileStache,Blechhirn/TileStache,MetGIS/TileStache,Kosta-Github/TileStache,SEL-Columbia/TileStache,Kosta-Github/TileStache,Billups/TileStache,mojodna/TileStache,jbants/TileStache