Fix #522 part  1
Fix-for-issue-#530
fix for #535

only render a lastACK line in the last messages chunck
Merge pull request #536 from TitanNano/lastACK-line-fix

fix for #535
Merge pull request #531 from gargsms/dev

Fix-for-issue-#530
Merge pull request #524 from aesedepece/dev

Fix #522 part  1
Fixes #534