rose_prune: add metadata.
rose-meta/rose-all: redump configuration file.
Configuration metadata for built-in applications.

fcm_make and rose_prune now have their own custom configuration metadata.
Also fixed 2 bugs with the integer spin widget.
Merge branch 'master' into rose_prune.meta
Documentation updates.
Remove pointless README files.
Merge pull request #767 from matthewrmshin/rose_prune.meta

rose_prune: configuration metadata