at least one space precedes the first underscore. This is neccessary
for handling underscores inside DTML vars.

has been recognized as string to be underlined.

(Collector #2196)

through webdav

If a request contained really quoted text crack_request() failed
with an exception because the correspondig regex is unable to handle
an unquoted request. unquot() is now called *after* crack_request

this by not adding oid == ZERO to the set of oids to process.

string in a safe way.