Fix a leak; add comments.
Adjust.
Merge pull request #1137 from fontforge/ufo_layer_1

Free fake splinechars correctly.
fontforge.appdata.xml added to desktop description

See developer mailing list message from maintainer for appdata.xml:
[Fontforge-devel] Please add a AppData application description
Add a newline to desktop/fontforge.appdata.xml
Merge pull request #1139 from JoesCat/master

fontforge.appdata.xml added for Desktop description
Use better screenshots for desktop/fontforge.appdata.xml
Merge pull request #1141 from JoesCat/master

Use better screenshots for desktop/fontforge.appdata.xml