Update is_required to missing_required_property
Updates to selenium and travis

Bump selenium for Firefox 28 support.
Add wait in User Preferences test to reduce failure.
Split out travis tasks further for faster build time per job.
Fix bug in public advanced search where exception is raised when building the advanced_query when more than 2 fields are provided.
Merge pull request #55 from payten/fix-public-advanced-search

Fix exception when more than 2 fields entered into advanced search
Add selenium tests for public interface search

Tests for basic and advanced search including the use of the
boolean operators.
Bugfix: Become user would throw an exception in the frontend.

Added a Selenium test to exercise this functionality, and a bonus little
utility function to give you a REPL when writing/debugging Selenium
tests.
Fix exception when visiting an accession detail view in the public app when the accession does not have a title.
check if subnotes exists first before sending a delete that is slowwww
adding ability for batch_import endpoint to take migration arguement that doesn't require importer to check obj position
Merge pull request #54 from mark-cooper/travis_selenium_updates

Updates to selenium and travis
Merge pull request #56 from mark-cooper/public_search_tests

Add selenium tests for public interface search
Merge pull request #57 from mark-cooper/rights_statement_validations

Update is_required to missing_required_property
Merge pull request #58 from marktriggs/become-user-fix

Bugfix: Become user would throw an exception in the frontend.
Merge pull request #60 from payten/fix-accession-public-view

Fix exception when visiting accession in public app
Merge branch 'master' of https://github.com/archivesspace/archivesspace
Updating Rails and getting selenium tests to pass more consistantly
more dependency lockdowns
upgrading the UPGRADING
Really locking down gems
last round of gem lockdowns