Implemented the ArrayAccess interface in EasyRdf_Container
Added custom class for RDF Collections (rdf:List) to allow iterating through them (see #84)
Decided to expand ref:type to full URI in EasyRdf_Graph to avoid expanding it in realtime
Merge pull request #124 from bdecarne/master

Allow passing subclasses of EasyRdf_Graph and EasyRdf_Format to serialiser
Merge branch 'master' of github.com:njh/easyrdf
code style fix to CollectionTest
Fix for variable name bug introduced in #124
Code style fix for EasyRdf_Serialiser
Added support for appending to the end of a Collection object
Added fixture for testing EasyRdf_Collection
Separated out ContainerTest assertions into separate test cases
Removed trailing whitespace
The $graph parameter is required for creating Collections and Containers
Implemented ArrayAccess in EasyRdf_Collection
Implemented seekable in EasyRdf_Collection
Codestyle
Added test for iterating through a collection, parsed from Turtle
Changed Turtle serialiser to serialise URIs before bnodes
Added support for serialising collections to EasyRdf_Collection
Added test for serialising a predicate with multiple values using the Turtle serialiser