iwinfo: print info of all existing wireless ifaces when cli is called without arguments

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36339 3c298f89-4303-0410-b956-a3cf2f4a3e73
[generic/3.9]: refresh against -rc7

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36340 3c298f89-4303-0410-b956-a3cf2f4a3e73
kernel: force CONFIG_NET_SCHED=y for fq_codel (#13360)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36342 3c298f89-4303-0410-b956-a3cf2f4a3e73
Merge branch 'master' of git://nbd.name/openwrt into wbm2013