============== - add geodatic datum functionality to grid objects
0.1.5
============== - bugfix of subgrid creation which returned wrongly shaped subarrays
0.1.4
============== - fix bug in lookuptable generation when gpis have custom ordering - add functions for getting subgrids from cells and gpis
0.1.3
============== - change meaning and rename grid dimensions to lon2d, lat2d. They do now represent 2d arrays of latitudes and longitudes which means that they no longer have to be regular in order to be able to have a shape. This is useful for e.g. orbit data
0.1.2
============== - fix issue 19 by refactoring the iterable checking into own function - made pykdtree an optional requirement see issue 18
0.1.1
============== - added support for saving more subsets and loading a certain one in/from a netcdf grid file - fix 15 by setting correct shape for derived cell grids - fix issue 14 of gpi2rowcol input types