Corrected a left-over plugin name replacement by PLUGIN_CLASS
Made LogAnalyzer output more meaningful
Include root node in meta data, unique meta data individual, version bump

The meta data individual now has its own unique ID. This makes sense when multiple experiments get loaded (first, to not have clashes between experiment meta data individuals, and second, to distinguish experiments better).
Also, the meta data now includes an own `knowrob:subAction' property that names the top-most parent node. This makes identification of the overall parent very easy, as opposed to scanning all individuals for being a subAction of any other node (which can get very time-consuming).

Plus, version numbers were adjusted where appropriate.