Merge pull request #42 from ruebot/7.x

solve blackout per https://groups.google.com/d/msg/islandora/ztY0Iv5-0AU...
Adding Test data from https://github.com/Islandora/islandora_solution_pack_pdf/pull/42
Changed Parameter Type Hinting to only use the top level Abstract class
7.x grammar and clarity fixes
Merge pull request #46 from jonathangreen/7.x-grammar

7.x grammar and clarity fixes
Merge pull request #43 from nigelgbanks/7.x-fixtures

Adding Test data from https://github.com/Islandora/islandora_solution_pa...
Merge pull request #44 from nigelgbanks/7.x-fcrepo4

Changed Parameter Type Hinting to only use the top level Abstract class
Use hooked access callback.
Merge pull request #50 from adam-vessey/7.x-hooked-access

Use hooked access callback.
Added Schema for SEO
Merge pull request #51 from morganhi/7.x-Schema

Added Schema for SEO