Use a better filename for crash dump

Semicolons are apparently not allowed on Windows :/

Fixes #184

Update appstream metadata for v3.9.0 as well

Add missing changelog entry

Prepare changelog for v3.7.0

Merge pull request #153 from Jacalz/spelling-error-fix

Fix spelling errors in changelogs

Reword the release title

Update release date in appdata

Updates to the v3.5.1 release

Add a missing changelog entry

Merge pull request #84 from Jacalz/next

Merge over changes for v3.4.0 release