Merge pull request #1445 from mmeisinger/fix1353_darestart_r2

OOIION-1353: Provide prior agent state to new launch of dataset agent /REL2.0
Merge pull request #1449 from mmeisinger/readme_r2

Updated README files
OOIION-1358: Move agent config to object in object store
Bumped pyon to REL2.0