New filter, digitally signed and stability improvements

New Features

• Added new "Has value for ..." filter that lets you see items that do or do not have a value for a specific property such as Title, tags, release date, ect.

Improvements

• Performance improvements when generating thumbnails
• COMPASS is now digitally signed with a code signing certificate

Fixes

• Fix crash when loading images
• Fix crash when disk is full
• Fix crash when writing to a folder without authorization
• Fix crash when resolving broken paths