Fix --dump-config quoting.

(cherry picked from commit 89756f8b764aa82981b81f87c1e82ac9741d5f40)

Conflicts:
	src/Volume.cc
Add missing 'devices' output to --dump-config

(cherry picked from commit af6a75e734acbdc549441925ebf62fcaa537aa7a)

Conflicts:
	src/Conf.cc
Update CHANGES.html