add helper function to sort by time dimension #319

Added helper function with test.
add helper function to sort by time dimension #319

Doc changes.
ipynb changes
ugid shapefile not wrapped #320

User geometries now appropriately wrapped. During the refactor of
subset this functionality broke and is now explicitly tested. This
only affected 0 to 360 coordinate systems.
add moving window average #309

Adding moving window calculations with docs.
add moving window average #309

Add long/standard names to Convolve1D and a fix for parameter
formatting.
code formatting
fixed iter_array which returning "masked" when use_mask was False
wrapping and unwrapping not capturing masked grid values #323

Wrapping now uses the data attribute of the masked arrays on the
grids. Also changed the array iterator on the geometries to not
use the mask though this was redundant as the data attribute was
already being used.
shapefiles names beginning with integer break sql expressions #325

SQL expressions for selecting geometries is no appropriately
quoted.
Update install_geospatial.sh
Update install.rst
Update install_geospatial.sh
Update install_geospatial.sh
Update install_geospatial.sh
Update install_geospatial.sh
Update install_geospatial.sh
simple fix for directory contents test
Update install_geospatial.sh
Update install.rst