Merge branch 'hotfix/2.1.3_remove_myopenid'
Add latest hotfix versions to changelog
Add units to colorscale bar
Split out unit formatting function
Bump version to 2.1.4
Bump required pdp_util version
Merge branch 'hotfix/2.1.4-bump_pdp_util'
Merge branch 'hotfix/2.1.4-bump_pdp_util' into dev

Conflicts:
	NEWS.rst
	setup.py
Bump version to 2.1.5
Bump dependency versions
Add latest hotfixes to news
Merge branch 'hotfix/2.1.5_handler_upgrades' into dev
Fixed formatting in release notes
Fix netCDF4 requirement now that 1.1.1 is out
Merge branch 'dev' of https://github.com/pacificclimate/pdp into dev
Bump required pdp_util version
Allows getMinMaxWithUnits metadata request
Merge branch 'feature/2.2-rc3_cb_units' into dev

Conflicts:
	requirements.txt
Fix legend unit formatting
Fixed mistake in the calculation of the midpoint of a log scale (it's the sqrt of the difference of the log of the endpoints, not the sqrt of the difference of the end points)
Refactored BCCAQ Extremes page to not use hard coded color scales and to reset the full WMS parameter set every request (so that params from past requests that are no longer applicable get removed)