io.raster.gdal:
- catched empty dataset exception

io.raster.GeoArray.GeoArray:
- added property 'xygrid_specs'
- save(): edited docstring; catched missing driver exception
- _get_plottable_image(): now supports requesting a geographic area (added keywords 'boundsMap', 'boundsMapPrj')
- show(): implemented keywords 'boundsMap', 'boundsMapPrj'; edited docstring
- show_map(): implemented keywords 'boundsMap', 'boundsMapPrj'; edited docstring
- get_mapPos(): refactored keyword bandslist to band2get; edited docstring

numeric.vector:
- find_nearest(): bugfix for wrong return value in case of exact hit if roundAlg=='off'

similarity.raster:
- calc_ssim(): added data type adjustment; refactored match to image0 and other to image1; added keyword 'gaussian_weights'

- updated __version__