Bumped version number up to 0.8.0
Added RDFa to the list of composer keywords
RDFa: code style fixes
Removed automatic registration of ARC2 and librdf serialisers when just including the files.
Changed the implementation of literals in EasyRdf, so that the string value is preserved.
Added parse() method to EasyRdf_Literal_Date and EasyRdf_Literal_DateTime
Added tests for passing parameters direct to the EasyRdf_Literal constructor
Added support for passing a DateTime object to EasyRdf_Literal::create()
Increased allowed image width in GraphViz Serialiser test
RDFa: Step 6 should be followed if the rel/rev attrubute exists (even if empty)
Fixes test case 106.
Increased max allowed image width in GraphViz Serialiser test to 500
Increased max allowed image width in GraphViz Serialiser test to 500
RDFa: minor changed/refactoring
RDFa: added support for the skip element flag
Fixes test case 84
RDFa: relabelled tests that are failing because graph comparison isn't working
Removed require for EasyRdf/Exception.php
Fix to error showing up in tests

Tests generating a "can't use '$this' in a static method error. This was the simplest 'fix' although self::remapBnode isn't a static method either.

Changed the exception to correctly report the type while I was there.

Signed-off-by: Jon Phipps <jphipps@madcreek.com>
Fix for serialising two bnodes that reference each other in Turtle (fixes #91)
Merge pull request #93 from jonphipps/FixStatic

Fix static
Fixed Redland parser after a bug was introduced while adding support for remapping bnodes (#93)