BUG: Updated copyright dates on docs
Update PPA to get a working libgeos-dev
Merge pull request #640 from cpelley/copyright_fix

BUG: Updated copyright dates on docs
Fix coding of maximum and minimum time-stats in Grib2 save.
reordered phenomenon dictionaries
Add minimal test for grib 4.8 template statistic coding.
Make data checksum ignore masked values.
Add new stashcodes for dewpoint and RH.
Modified attribute behaviour for netCDF save.
license header date
Calculates correlation between cubes
Merge pull request #555 from niallrobinson/cube_correlation

Calculates correlation between cubes
BF - Correct Earth radius interpretation for GRIB, fixes #690.
Merge pull request #691 from ajdawson/grib-save-earth-radius

BF - Correct Earth radius when saving GRIB2 files, fixes #690.
Added support for loading regular gaussian grids from GRIB files.
Merge pull request #702 from rhattersley/normalise-checksums

Make data checksum ignore masked values.
Merge pull request #689 from ajdawson/regular_gg-grib

Added support for loading regular gaussian grids from GRIB files.
Added more complete tmerc to cartopy translation
Review actions
BF - allow model level GRIB files to be loaded. Closes #720.