- shorten rpm-build filelist a bit with glob use, reorder for saner grouping
- missing isa in popt version dependency
- only add rpmdb_foo symlinks for actually relevant db_* utils
- drop no longer necessary file-devel dependency from rpm-devel
- drop sqlite backend build-conditional
- preliminaries for moving from db4 to libdb
- use gnupg2 for signing as that's more likely to be installed by default
