Updated Spanish translation
Updated Brazilian Portuguese translation
Fix exception closing the game unitis editor
Handle pixbuf errors in serialization
Bump release 0.18.15
Fix encoding mode and bitrate for mpeg4
Fix steps for histogram graphs
Show zonal tagging in a different tab
Speed up database startup
Updated Spanish translation
Updated Brazilian Portuguese translation
Updated Czech translation
Updated Slovenian translation
Fix typo
Don't overwrite the source file when remuxing
Updated Spanish translation
Updated Czech translation
Enhanced Brazilian Portuguese translation
Bump release to 0.18.16
Use the same naming for os types defines