In ContextModule : left-most and right-most child features are only taken into account if they are respectively to the left or to the right of their parents

Corrected order of trainStrategy applications : removed possibility of parameter reset before dynamic example extracting

Removed pretrainedEmbeddings as a global parameter, instead submodules can now have their own pretrained w2v

mcd file is now longer needed, we can give mcd throught program argument, use the default one, or read it from conllu file metadata