Turning on :tables by default for RedcarpetCompat.
Changing the markdown tables test to require Redcarpet.
Merge pull request #765 from bclennox/redcarpet_tables

Turning on :tables by default for RedcarpetCompat.
Merge pull request #767 from amclain/master

Fix issue #760: private_class_method causes exception
Set status code when library is not loaded
Fix rendering unprocessed libraries