updated setup.py
changes in routines for reading and clipping netcdf
bugfix
Merge pull request #13 from IsabellaP/develop

changes in routines for reading and clipping netcdf
GeoTIFF get layer extent
Merge pull request #15 from IsabellaP/develop

GeoTIFF get layer extent
clip bbox for non-global geotiffs
Merge remote-tracking branch 'upstream/develop' into develop
geotiff unittest
Merge pull request #16 from IsabellaP/develop

Develop