centralize email format definition
human readable resources
Fix typo
Bump pyon for new driver client exception.
add check to filter invalid variable attributes as in the sam method in UNS
align the exception text with the pattern for governance exceptions
Update README with new buildout instructions
adjustments to driver client and inst agent for lost or crashed driver recovery.
Bump pyon for more thread safe fsm magic.
Bump pyon typo.
Merge pull request #1259 from ifreecarve/2013-07-16_email_refactor

Refactor email-sending code in user notification, add human readability
driver pinger and driver loss detection.
Final pinger logic.
Bump epu
Bumped ion-definitions
Merge branch 'master' into dataset_agent