first whack at retries
Merge branch 'master' of https://github.com/nytlabs/streamtools

Conflicts:
	st/library/toEmail.go
fixed toemail retry
docs and simplify
created resetClientls
Merge branch 'master' of github.com:nytlabs/streamtools
cleanup
Merge pull request #448 from jprobinson/master

Added retry logic for ToEmail's send and reconnect