Fix #78 which may have causes addon updates to fail silently.
Enterkey triggers find and replace in search dialog. (Issue #59)
Graceful disconnect failed silently.
The addon was internally restructured/reorganized.
Obsolete dependencies and files are removed.
The message filter list overlay is deactivated. It is an experiment an should not be part of a release.
A gulp script is now used to package the xpi.
Thunderbird's API to open a website in a browser was changed.
This affected the donation button as well as the sieve reference.
Update about wordle with contributors