Updated travisci indicator.
Added test for closing tags, includes changes to htmlparser for flagging. Closes #88
Fixed a few test descriptions.
Added test for idref attribute missing target IDs. #162.
Added test for th elements with axis attributes matching IDs. #162.
Fixed semicolons.
Added unicode symbols block to documentVisualListsAreMarkedUp. #116
Merge branch 'refs/heads/dev' into guideline