Add broader term to collection
Add list of skos notes to collection and conceptscheme
remove unnecessary files
Merge branch 'master' into cahytinne-master

Conflicts:
	skosprovider/skos.py
	tests/test_utils.py
Fix missing init.
Add glossay for SKOS-THES.
Add subordinate and super_ordinate.

Not sure of the names. Seems strange to have subordinate_array and
super_ordinate.
Renamed super_ordinate to superordinate.

It seems rather strange to sometimes see superOrdinate (as if it were
actually two words) and also subordinateArray. To be consistent, I'm
treating superordinate and subordinate as both being one word.