[package] e2fsprogs: update to 1.42.8 and add e4defrag

Signed-off-by: Peter Wagner <tripolar@gmx.at>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37588 3c298f89-4303-0410-b956-a3cf2f4a3e73
[package] zlib: update to 1.2.8

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37589 3c298f89-4303-0410-b956-a3cf2f4a3e73
[package] iproute2: update to 3.10.0

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37590 3c298f89-4303-0410-b956-a3cf2f4a3e73