lib/tasks/ not installed

[svoop]

This is no biggie, maybe just an inconsistency due to a bit planned for a later release:

New Hanami apps bootstrap a lib/tasks/ directory. Burnt by Rails, I assumed, any *.rake files in there would be loaded when the hanami/rake_tasks are required – but they are not.

For now, adding Dir['lib/tasks/*.rake'].each { load _1 } to the Rakefile works around this.