EUCA-7893
added error handling for setDataInterest call to improve reaction to session credential expiration
work in progress to renew session creds
merged maint/3.4/testing into fix branch
EUCA-7893
consolidate code to reset anything that needs refreshed session creds
EUCA-7893
removed un-used import
Merge pull request #235 from eucalyptus/EUCA-7893

Euca 7893