Updated importer to get default primary dsid from the derivitave hook, already i use in all solution packs.
Removed unused hook definition, and unused define.
Updated xpath expression.
Fixed xpath expression.
Merge pull request #26 from MorganDawe/7.x

Primary data-stream refactor
Rewrite on top of islandora_batch.
Add dependency.
Coding standards.
Update Travis stuff so it grabs islandora_batch.
Content model could be useful...
Fix content models in zip importer.
Fix static silliness.
Merge pull request #27 from adam-vessey/7.x-INT-190

Rework to integrate with islandora_batch.