Should be able to check :update and :destroy permissions with a SolrDoc
Previously only :edit was supported.
Merge pull request #133 from projecthydra/fix_edit_with_solr_doc

Should be able to check :update and :destroy permissions with a SolrDoc
Removed deprecated classes and methods
Merge pull request #134 from projecthydra/remove_model_mixins

Removed deprecated classes and methods
Changes default create permissions from allowing creation of anything to not allowing allowing creation of anything.