Removed uneeded static reset.

Please only merge after https://github.com/Islandora/islandora/pull/346
has been merged.
Merge pull request #64 from nigelgbanks/7.x-ingest-tests

Removed uneeded static reset.
Use utility function to accomplish namespace restrictions.
Merge pull request #65 from jordandukart/7.x

Use utility function to accomplish namespace restrictions.