update Release Notes for v1.0.21
Merge branch 'docupdates_sp32a' of github.com:masthalter/reddwarf_lite-integration into docupdates_sp32a
Merge branch 'docupdates_sp32a' of github.com:masthalter/reddwarf_lite-integration into docupdates_sp32a
update Release Notes, Devguide, Getting Started, and Mgmt Devguide for v1.0.21