checking to see if commits work
test
addes broadcast date to terminology
intentional breaking
changed pbcore terminology
fixed specs
small changes to document indexing.  still needs refinement
fixed assetdate to be indexable and displayable
merge fix
small changes to account for more broad style definitions in the pbcore data
added subject to pbcore
* Removes 'alternative_title' from terminology specified in HydraPbcore::Datastream::Document. Removes tests referring to 'alternative_title'.
* Changes 'summary' to 'description' in terminology specified in HydraPbcore::Datastream::Document.
* Removes individual descriptions in terminology specified in HydraPbcore::Datastream::Document. Replaced by accessors for 'description' and 'description.type'.
* Adds accessors for each specific type of title.
* Changes the default xml template to be extremely bare bones.
* Updates Gemfile.lock after bundle install.