subversion: Update to 1.8.9

(cherry picked from commit b4c4e2d28d84a69041dad19ded3ff4016992a3c3)
serf: Update to 1.3.6

(cherry picked from commit 542373f305ecda104827dc99daea8b01bf1876c7)
subversion+serf: security update to fix CVE-2014-3504

Thanks to nixpkgs monitor again.

(cherry picked from commit 3775fa9ea22401b69219b9a46aa60f51b45a10db)
php: update from 5.4.33 to 5.4.34, potentially fixes CVE-2014-3668, CVE-2014-3669, CVE-2014-3670

(cherry picked from commit 6d79132553574c5499675888f18838a7f87c8c00)
linux: Update to 3.12.32

(cherry picked from commit 1d5147dd17c5c876f75a0269cf9aebd2dbf029a9)