Common infrastructure for serialisation options. refs #142
Options for JSON-LD serialization + tests
register JSON-LD serialiser, so it can be user from EasyRdf_Graph::serialise()
Removed json-ld from being a development dependency
Merge pull request #144 from indeyets/serialiser_options

Merged in support for passing options to serialisers
fixed formatting
shorter lines (to make phpcs happy)
php52 compatibility
Set value as node content only if the content attribute does not exist (test 0332)
Merge pull request #147 from scor/test_0332

Set value as node content only if the content attribute does not exist (...
Moved to www.dbpedialite.org
Merge branch 'master' of github.com:njh/easyrdf
Fix for missing trailing slash the HTTP client
Removed trailing whitespace
Add support for JSON-LD @type keyword
Adaptation to the new JSON-LD API.
Issue was mentioned in gh-152
fixed source to align with coding guidelines
Implemented basic EasyRdf_Isomorphic class
Made EasyRdf_Serialiser_Ntriples::serialiseValue() public
content attribute takes priority over the datetime attribute in RDFa (test 0278)