Bug 340724, update to NSS_3_11_20060831_TAG

r=wtchang
includes fix for bug 350640

client.mk

@@ -383,7 +383,7 @@ MODULES_all :=                                  \
 # and commit this file on that tag.
 #MOZ_CO_TAG          = <tag>
 NSPR_CO_TAG          = NSPRPUB_PRE_4_2_CLIENT_BRANCH
-NSS_CO_TAG           = NSS_3_11_20060731_TAG
+NSS_CO_TAG           = NSS_3_11_20060831_TAG
 LDAPCSDK_CO_TAG      = ldapcsdk_5_17_client_branch
 LOCALES_CO_TAG       =