Fixed the issue that when one email address got deleted when put on hold.
Added detail comments for future debugging.
Merge remote-tracking branch 'guanhuan/development' into release-1.01
Fixed the bounce fetch from Mailjet.
Bounce now will be recorded to contact correctly and the email address will not get deleted
Correct the Job ID in event processing part.
Merge pull request #7 from popcm/development

Development
Update README.md
Merge pull request #8 from compucorp/release-1.01

Release 1.01