Render form field descriptions and errors properly
Render form field descriptions and errors properly

The description was not rendered at all and errors did only look
good in basic layout forms. Neither description nor errors are
displayed for inline layout forms yet as displaying these in inline
forms is not trivial.

lukasjuhrich/pycroft,lukasjuhrich/pycroft,agdsn/pycroft,agdsn/pycroft,agdsn/pycroft,lukasjuhrich/pycroft,agdsn/pycroft,agdsn/pycroft,lukasjuhrich/pycroft