Release Notes for v1.0.4

Version description of the v1.0.4 release of ICESat-2 SlideRule

The ATL06 response records now include the h_sigma field (833a3bd)
Updated H5Coro to support version 4 ATL03 files (6198cec)
Fixed symbol table bug in H5Coro (f80857c)
Resource names are sanitized before being used (61f768c)
Renamed h5coro-python target to binding-python, and it is now treated as Python bindings for SlideRule. Python bindings are not intended to become a Python package.
Created Python utility for displaying version of SlideRule running (query_version.py)
icesat2.toregion api now supports GeoJSON, Shapefiles, and simplifying polygons (see documentation)
Created sliderule-project repository for icesat2sliderule.org; all documentation moved to this repository (includes Read the Docs).
Optimized icesat2.h5 api by using bytearray when concatenating responses (da05da6)

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