* Refactor of _CRS class to make WKT canonical
* Finish work on making WKT canonical
Many test assertions needed update
* Accept {'init': 'EPSG:xxxx'}
Also removed commented code
* Restore previous rio-info behavior when there's an EPSG code
* Remove unneeded import
* Use from_proj4 in from_epsg
* Rewrite of _CRS to keep an OGRSpatialReferenceH (#1602)
* Rewrite of _CRS to keep an OGRSpatialReferenceH
Rewrite of CRS to use _CRS by composition, not inheritance
New OGRErr handling function exc_wrap_ogrerr
* Remove commented code
* Add back in the error stack check for ImportFromProj
Also fix up docstrings
