o.c.graphene: configuration panel should use text changes right away
o.c.graphene: moving text handling logic to superclass
o.c.graphene: configuraion panel, all text fields handled the same
o.c.graphene: adding delayed notification for text updates
No notification are sent while writing, only after 750 ms of the last character.
Merge branch '3.2.x' of git@github.com:ControlSystemStudio/cs-studio.git into 3.2.x