For SVY-6452: NGClient: support windows plugin

Added some unit tests and fixed a few problems - again a sub-value ended
up being unattached to the component in a scenario + some small things.
new version prepare
Fixed copy/paste error in comment.
typo
Fixed SVY-7281 : Problem changing dataprovider in foundset property from
client
Merge remote-tracking branch 'origin/master' into SVY-6929

Conflicts:
	sablo/src/main/java/org/sablo/websocket/WebsocketEndpoint.java
wip