Use latest lib-grimoire
Include a bugtracker link in error messages
Handle missing symbols better, fix arity missmatch
Whitespace
404 on nil results from render fns
FIXME got a little lost there
Handle possible exception from the FS API
Handle thrown error from FS API in version-page
Fix render fns to yeild nil on an error
Fix error-unknown-namespace for thing arg
Fix some order issues with the error handlers
Fix error-unknown-version for Thing input
Fix error-unknown-group for thing input