Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>

- updated __version__ and __versionalias__

- added new module 'convenience'

convenience:
- added new submodule 'object_oriented': added function alias_property from GeoArray

geo.projection:
- EPSG2Proj4(): catched case EPSG_code=None
- EPSG2WKT(): catched case EPSG_code=None
- WKT2EPSG(): catched case wkt=''

io.raster.GeoArray:
- moved GeoArray, NoDataMask, CloudMask, BadDataMask, MultiGeoArray to a new separate library called 'geoarray' and added DeprecationWarnings instead

- updated some import statements

- updated __version__

added warning if automatic nodata value detection returns unreliable value; bugfix for overwriting user defined attributes of GeoArray

io.raster.GeoArray:
- GeoArray:
    - added quiet mode
    - added attribute _gdalDataset_meta_already_set
    - added print output if nodata value had to be detected automatically
    - set_gdalDataset_meta(): added docstring; method is now only called from __init__

numeric.array:
- revised find_noDataVal()

- added new package similarity

geo.raster
- __init__.py: added __all__
- added module conversion containing new function raster2polygon for polygonizing raster arrays

io.raster:
- gdal:
    - get_GDAL_ds_inmem(): gt and prj are now optional keywords
- GeoArray:
    - added function _alias_property()
    - GeoArray:
        - added attribute basename
        - __init__(): added FileNotFoundError for Python 3
        - added 'nodata' property that return nodata value
        - refactored cols attribute to 'columns'
        - added alias attributes 'cols', 'gt', 'prj'
        - added 'mask_nodata' property that returns a no data mask (uint8)
        - added 'footprint_poly' property that returns a shapely polygon with the corresponding footprint
        - added nodata value derival to set_gdalDataset_meta()
        - save(): added automatic creation of output directory
        - _get_plottable_image(): now respects nodata value
        - show(): now respects nodata value
        - show_map(): now respects nodata value
        - added show_footprint() function that shows a zoomable map containing the footprint polygon as overlay (Jupyter Notebook internal)

io.temp_io => refactored to 'pathgen':
- added function get_generic_outpath()

numeric.array:
- added function find_noDataVal() to derive nodata value from a given numpy array

ptds.__init__:
- updated __version__

- added a new version of warp_ndarray and renamed the old one to warp_ndarray_OLD: much faster than the old version and no issues when warping 3D arrays
- some modifications to warp_ndarray_OLD
- added get_GDAL_ds_inmem()
- added get_GeoArray_from_GDAL_ds()
- added warp_GeoArray(): a function to warp GeoArray objects

geo.vector.coord_trafo:
- added transform_GCPlist()

 geo.vector.projection:
 - WKT2EPSG() now returns an integer instead of a string

io.raster.GeoArray:
- GeoArray:
    - added whitespace assertion to __init__()
    - added properties 'rows', 'cols', 'bands', 'xgsd', 'ygsd', 'box'
    - dtype: bugfix for error when dtype is requested from in_mem-GeoArray
    - __getitem__(): bugfix for returning the wrong array subset when 'given' slice has length 1
    - show(): added interpolation and cmap keywords
    - get_mapPos(): revision
- _clip_array_at_mapPos:
    - Memory errors due to wrong target dimensions are now catched
- get_array_at_mapPos(): major revision

numeric.array:
- added get_outFillZeroSaturated()