updated RELEASE.md
removed release notes in source distribution. added link to project website release notes and known issues page.
working version of narccap city centroid subset script. reorganized the narccap examples directory to keep files related to the city centroid subset use case separate.
added skip to long narccap test
working test data download. added test_base to test data download. added constant for remote URL prefix.
added some skip messages. fixed _new_dir renamed to _test_dir. needed to add OVERWRITE=True where necessary.
shapefiles do not have to appear in folders with a name corresponding to the shapefile contained within.
added link to source data metadata file in ocgis metadata file.
changed remote url prefix for download.
added path to warning message formatting
removed test_data_subset as this is not a currently used feature
doc changes
added data download for test_operations
date parts changed to a structure array and test_date_groups added.
added test for multiple uris in test_base. fixed test_operations to work with remote data download.
fixed time region test to work with structured array time groups
added skip for QED data check.
minor changes to tests.
working version of climatology variable setting w/ bounds
Merge branch 'i-67-computations' into dev

Conflicts:
	src/ocgis/constants.py
	src/ocgis/test/test_operations.py