Fix validations unit test to pass legitimately
fix #87 - use solr _query_ to encapsulate solr queries for escaping
Reworking datastream id spec to be order agnostic

Closes #89
Merge pull request #88 from acurley/fix_validations_test

Fix validations unit test to pass legitimately
fix #87 - use solr's !raw and sub-query feature to handle solr query escaping
Using Rubydora's mint for assign_pid

Close #83
Merge pull request #93 from projecthydra/issue-87-solr-query

Issue 87 solr query
Merge pull request #90 from projecthydra/gh-83-use-rubydora-mint

Using Rubydora's mint for assign_pid
Merge pull request #92 from projecthydra/gh-89-update-test-for-order-agnostic

Reworking datastream id spec to be order agnostic
Modify or remove tests that check for DC datastreams; deprecate Datastreams#dc in favor of Datastreams#datastreams["DC"]