use bucket brigades directly when reading PUT data. This avoids

problems with content-length-modifying input filter (like deflate).

revision 1.99:
drop the test, whether apr_brigade_create returns NULL. It does never
(dumps core instead :-)

Submitted by: Cliff Woolley

revision 1.100:
get rid of _FOREACH
Submitted by: Cliff Woolley

(Needed 1.100 too as APR_BRIGADE_FOREACH is now gone in APR-util 1.0+.)

Backport of modules/dav/main/mod_dav.c r1.98, r1.99, r1.100
PR: 22104
Some stuff submitted by: tim@robbins.dropbear.id.au (Tim Robbins)
Reviewed by:	Andr� Malo, Jeff Trawick, Justin Erenkrantz


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@102119 13f79535-47bb-0310-9956-ffa450edef68