[#7130] Removed inefficient next / prev links on file browse page

Signed-off-by: Cory Johns <cjohns@slashdotmedia.com>
[#6964] Bump to ActivityStream 0.1.8

Signed-off-by: Tim Van Steenburgh <tvansteenburgh@gmail.com>
[#7111] Reference importer targets by ep name

Allows subclassed apps to be used as import targets without requiring
a new importer and controller subclass be created.

Signed-off-by: Tim Van Steenburgh <tvansteenburgh@gmail.com>
[#7111] Fixed failing test and added comment

Signed-off-by: Cory Johns <cjohns@slashdotmedia.com>
[#7111] Bumped GC, Trac, and Mediawiki Wiki Importer versions

Signed-off-by: Cory Johns <cjohns@slashdotmedia.com>