Please consider merging branch firejail of repo https://git.spwhitton.name/propellor.

Changes:

• Add applytoList property combinator
• Add Propellor.Property.Firejail module

Comments:

• I'm not sure whether Joey or I originally wrote applyToList; it's been in my config.hs for a while
• Firejail.jailed accepts a list of executables (and Firejail.jailed' is not exported) because as with Apt.installed, I think most users will want to jail more than one program. For example Firejail.jailed ["firefox", "evince"].
• I made the build clean on GHC 7.10 but there is a warning on 7.6 that Prelude does not export Foldable. I don't know how to fix this while maintaining the 7.10 clean build, and it seems to me that having the 7.10 build be clean is more important than having the 7.6 build be clean.

--spwhitton

done, thanks! (I fixed the warning.) --Joey