Allowed no averaging as a column heading in addition to sum/mean
Merge pull request #1058 from esc24/name_time_avg_fix

Allowed no time averaging as a column heading in NAME files
Support for load/save hybrid pressure plus support for saving multiple aux factories
review actions
Merge pull request #1063 from esc24/loadsave_cf_hybridpressure

Saving hybrid pressure to netcdf
Added support for sys.prefix based udunits xml path
grib1 hybrid pressure load
pep8
MAINT: Corrected masked array comparison and extended its use.
Minor alterations
Review actions and rebase.
Changes reflecting review
Merge pull request #1075 from pp-mo/grib1_hp

Grib1 hybrid pressure
Unittest adjustment
Merge pull request #1074 from cpelley/updated_mask_comparison

MAINT: Corrected masked array comparison and extended its use.
Fixed pep8 test fails introduced by pep8 v1.50.
Merge pull request #1080 from pp-mo/pep8_1v50

Fixed pep8 test fails introduced by pep8 v1.50.
cube math broadcasting
ENH: Tests for cube broadcasting.
More testing