[forms] fix implementation of backward compat method form_render
previous implemtation used form_default_renderer() which is now replaced
by default_renderer()
#!/bin/sh
rm -f web/test/tmpdb*
rm -f web/tali18n.py
rm -f applications/*/test/tmpdb*
rm -f applications/*/tali18n.py
rm -f applications/*/i18n/*_full.po
rm -f applications/*/data/Schema.dot