0.8dev: Copied `changeset.html` to `bh_changeset.html`, and added it to the template map.


git-svn-id: https://svn.apache.org/repos/asf/bloodhound/trunk@1551371 13f79535-47bb-0310-9956-ffa450edef68
0.8dev: Add some basic layout to the changeset page.


git-svn-id: https://svn.apache.org/repos/asf/bloodhound/trunk@1551372 13f79535-47bb-0310-9956-ffa450edef68