Fix double-start. Patiently wait for data.

Fixes ZEN-10600.
Fix loss of precision in data wait time.

Fixes ZEN-10600.
Fixed defect ZEN-7882
Merge remote branch 'upstream/develop' into develop
ZEN-10410: added filter to show only devices, not components
Merge pull request #130 from zenoss/feature/ZEN-10600

Please review branch feature/ZEN-10600
Merge pull request #11 from ssamartyn/develop

Fixed defect ZEN-7882
Fixed ZEN-9362 issue
Merge remote branch 'vova/develop' into develop
Merge fix