Merge pull request #8 from Islandora/7.x

update 7.x
simple at-a-glance verification of drupal filter writability
Merge branch '7.x-filter_drupal_is_writeable' of https://github.com/qadan/islandora into 7.x-filter_drupal_is_writeable
oh qadan you goof
doing this the less stupid way
let's just do this right
Fixing spelling mistake in ingest message:  notifiy changed to notify.
Merge pull request #552 from matthewperry/7.x-METRO-77

Fixing spelling mistake in ingest message:  notifiy changed to notify.
Fix the invalid markup generated by the printer icon.
Merge pull request #553 from jordandukart/7.x

Fix the invalid markup generated by the printer icon.
datastream entity
Updated mimetype mappings.
Merge branch '7.x' of github.com:Islandora/islandora into 7.x
added mop back to mimedetect.
Merge pull request #556 from MorganDawe/7.x-WRLC-mimework

7.x wrlc mimework
Merge pull request #555 from willtp87/7.x.datastream_entity

datastream entity
Basic implentation of other hooks and XPath Rules condition.
forgot you can't just run the parent run()
Merge branch '7.x' of https://github.com/Islandora/islandora into 7.x-filter_drupal_is_writeable
coder issues