Reliability enhancements and minor corrections.
- Improves client and server reliability in the face of inability to send email messages on creating an Organization, inviting a User, & resetting a Password
- Restores navigation to Task from Assignment Comment thread navigation icon
- Correct signature authentication in processing billing events
- Protect against edge-case preventing a newly created Organization from immediately appearing in navigation
- Protect against minor, non-fatal console error in Organization billing info display