Bugfix for importing.
Changed the tagline.
Alternative implementation of related publish.
Simplified related publish.
Updated Annotator and mapper and matcher.

Updated how text normalization is done in all three places (Annotator,
mapper and matcher).
Added initial version of new DOM based selector and anchor strategy.
Bugfixes for DOM anchors.
Updated to the new version of Annotator with some upstream fixes.

It also makes anchors and highlights plugins so it allows future
improvement on how we do anchoring and highlighting.
Merge branch 'master' into permissions
Fixes importing of same publication multiple times.
Made search results use related publish.