style-tag-reuse: added support for reusing css style tag; fixed bugs with non-arrays in config file

Signed-off-by: Ben Holzman <bah@axial.net>
style-tag-reuse: use a helper function to coerce to list

Signed-off-by: Ben Holzman <bah@axial.net>
Merge pull request #2 from axialmarket/style-tag-reuse

style-tag-reuse: added support for reusing css style tag; fixed bugs wit...