fixed BewertungenAnzeigen Table with empty values
fixed bewretungenanzeigen: scatterplot + fixed scatterplot with empty
values
fixed chart for Handlungsfeld
fixed edit Item; fixed bewertung anzeigen bereichcolumn with one item
fixed profilchart and kiviat for student with empty values, item
vorlage, edit item, action on enter
AddItem Question Textarea enlarged
added edit for lehrveranstaltung
Merge branch 'develop' of https://github.com/hauntedhill/SE-CAT.git into develop