Call 'prepare' for all dependencies' qlfiles.
Add 'ql :all :latest' at the beginning implicitly.
Make it explicit depending on :clack-handler-hunchentoot.
Don't replace a dist when install-dist.
Delete :use-snapshot option. qlot:install will use a snapshot file if it exists.
Rename qlfile.snapshot to qlfile.lock.
Fix the name of qlfile.lock.
Refactor qlot.install.
muffle-warning during asdf:find-system.
Report updating information.
Don't display outputs from git command.
Fix a test.
Fix a warning message.
Fix prepare-qlfile.