add logs to trace progression of messageSubscriber

- debug dump envelope
- info log messageSubscriber.Id
Update faq.md

Adding Known bug #62591 update
Update faq.md

formatting correctly
Update faq.md

3rd try
Merge branch 'create-dbs-with-read_committed_snapshot' into 62930-add-more-logging-for-message-subscriber-tracing
Merge pull request #26 from daptiv/create-dbs-with-read_committed_snapshot

Create dbs with read committed snapshot = test = PASS
Merge pull request #27 from daptiv/62930-add-more-logging-for-message-subscriber-tracing

add logs to trace progression of messageSubscriber
Merge branch 'master' into 62829-log-0-pending-to-graphite
update to latest Perfadilly with BatchSize setting

default to 100 messages
fixing queue settings in app.config
Merge branch 'master' into 62829-log-0-pending-to-graphite
fix typo, mispelled table name