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Merge branch 'master' into no-endpoint

Conflicts:
	src/app/templates/base.html
Merge branch 'master' into no-endpoint
New store abstraction layer based on RDFLib
Removed some whitespace
Rewrote for new store abstraction layer. Works… sort of.
Some new examples…
Label fixes
Slightly bigger example
Removed unnecessary stuff
Better labels
Fixed click-handling for nodes
Added direct link to git repo for json-ld plugin (doesn’t work yet with pip)
Moved to examples
ahum
all of that didn’t work
Added scrollbar to long dropdowns
Redefined services
typo