Bump maxVersion in case there is a future addon release.
Merge of fix for linked in connections-only sharing.
Finish hotfix to re-enable direct messaging with stronger checks and …
…with UI feedback on missing or incorrect direct recipients.
Disable DMs for now, until some kinks are worked out.
Extension Release 0.8.3
Bring the 0.8.2 fix into master for future hotfixes, rev to 0.8.3
Hotfix for Bug - adding too many message event listeners: extension-o…