add support for returning module contents as HTML
Adjusts route ordering, adds collection html rendering, and adds tests.
Merge pull request #189 from Connexions/contents-as-html

WIP: add support for returning module contents as HTML
force a specific order for test compliance across platforms
Merge pull request #196 from Connexions/test-order-fix

force a specific order for test compliance across platforms
add expanded metadata for parent of derived copy
Merge pull request #198 from Connexions/derived-copy-info

add expanded metadata for parent of derived copy