add TODO
fixup query operation
loading pkg directly should add hash, fix updating
add status messages
we don't need a seperate pkgcache anymore
don't compare checksums on update by default
add repo signing support
add -s/--sign to sign the database
update README with a hint that signing works
Update buffer.h

We don't need no edu^H^H^Hredundant dependencies.
Merge pull request #3 from numerical/patch-1

Update buffer.h
search for signatures and add them to the database

Issue #4
add -k/--key opt for specifying the key
remove the -r/--repo flag and move it to first arg
support all the compression schemes repo-add does
add hacky repo-add compat
add a config struct to deduplicate code
update README
prefer long op in README
replace strsep with strstr in find_repo