Invoking body false will return a blank body with 204 No Content.
Merge pull request #850 from dblock/text-plain

Invoking body false will return a blank body with 204 No Content.
Fix #801: Evaluate values proc lazily.
Merge pull request #851 from dblock/fix-801

Fix #801: Evaluate values proc lazily.
Specs for issue #780.
Merge pull request #852 from dblock/issue-780

Specs for issue #780.
Fix #679: OPTIONS and unsupported methods returning 404 when combined with prefix.
Merge pull request #853 from dblock/fix-679

Fix #679: OPTIONS and unsupported methods returning 404 when combined with prefix.
Fix #801: Only evaluate values and default proc lazily.
Merge pull request #854 from dblock/fix-851

Fix #801: Only evaluate values proc lazily.