v0.1.1, 2013-11-18
* Added readers for netCDF H25 HSAF product
* Added readers for netCDF ERS soil moisture product
* Added general grid classes
* Performance improvements for anomaly and climatology calculation through usage of cython
* Introduced df_metrics module for convienent calculation of metrics for data saved in pandas.DataFrames

v0.1.2, 2014-04-16
* Reader for different versions of netCDF H25 HSAF product
* added functionality to save grid definitions to netCDF files
* Fixed Bug that masked all data if snow probabilities did not exist
* Added tests

v0.1.3, 2014-05-26
* fixed bug in grid.nearest_neighbour that caused different results on
  different systems. Radians are now always calculated at 64bit accuracy
* ISMN routines now read the new ISMN download format
* df_metrics.bias now also returns a namedtuple

v0.2.0, 2014-06-12
* added readers, tests and examples for H-SAF image products H07, H08 and H14
* added resample method that makes using pyresample a easier for the dictionary structure that
  pytesmo uses for image data
* added colormap reader for custom colormaps

v0.2.1, 2014-8-14
* added functionality to save grid as 2 dimensional array in grid.netcdf if
  grid is regular and shape information is given
v0.2.2, 2014-10-03
* fixed bug that lead to old grids without shape information not loading
v0.2.3, 2014-10-03
* added grouping module
