subversion: fix for Security Advisory CVE-2013-1845

subversion: fix for Security Advisory CVE-2013-1845

The mod_dav_svn Apache HTTPD server module in Subversion 1.6.x before
1.6.21 and 1.7.0 through 1.7.8 allows remote authenticated users to
cause a denial of service (memory consumption) by (1) setting or (2)
deleting a large number of properties for a file or directory.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-1845

Signed-off-by: Yue Tao <Yue.Tao@windriver.com>
Signed-off-by: Roy Li <rongqing.li@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>