Merge pull request #2 from flyingzumwalt/master

Makes examples less repetitive, adds some explanation, removes unnecessary steps from some examples.
Update dependencies
Fix a namespacing issue for property predicates.
Use id() instead of the deprecated pid().
Update from deprecated has_file_datastream to contains.
Update comments for appropos use of file and datastream.
Merge pull request #3 from grosscol/master

Updating demo dependencies and terminology
Fixes all demos to distinguish between scalar and multivalue properties (this is required with newer versions of active-fedora)