REL_14_21
Gene Selkov's CUBE datatype (GiST example code)
Change floating-point output format for improved performance.
Support "make check" in contrib
Remove useless whitespace at end of lines
Remove deprecated containment operators for contrib types.
Fix whitespace
Make contrib modules' installation scripts more secure.
Distinguish selectivity of < from <= and > from >=.
Update extensions with GIN/GIST support for parallel query.
Add binary I/O capability for cube datatype.
Make DatumGetFoo/PG_GETARG_FOO/PG_RETURN_FOO macro names more consistent.
Provide separate header file for built-in float types
Exclude flex-generated code from coverage testing