speed container creation/destruction
speed container creation/destruction

As the state of the container is monitored with the netlink,
the file state is no longer used to watch the state changes.

The previous hack, which adds a tempo of 200ms, is removed and
that makes the container being created, started, stopped, destroyed
faster, we gain 1 second in a container lifecycle. One second is
too much if we launch thousand of containers, one by one like for
example in a tests suite.

Signed-off-by: Daniel Lezcano <3211518dd4d87cb3f7ee12cb52e14b7fb2bc0446@fr.ibm.com>

hkjolhede/lxc,regit/lxc,christiaan/lxc,bostjan/lxc,armcc/lxc,ksperis/lxc,lisongmin/lxc,hfuCN/lxc,virajs/lxc,cipriancraciun/lxc,szaszg/lxc,sapun/lxc,Distrotech/lxc,GreatFruitOmsk/lxc,raspberrypython/lxc,akshaykarle/lxc,abstrakraft/lxc-android-lxc,christiaan/lxc,major/lxc,ioops/lxc,hallyn/lxc,potatosalad/lxc,codebauss/lxc,cjwatson/lxc,QingweiPeterLan/cs188-lxc,QingweiPeterLan/cs188-lxc,raspberrypython/lxc,hkjolhede/lxc,DarknessBeforeDawn/lxc,kylef/lxc,Ponce/lxc,raspberrypython/lxc,abstrakraft/lxc-android-lxc,szaszg/lxc,ecarrara/lxc,tych0/lxc,smoser/lxc,abstrakraft/lxc-android-lxc,ojkastl/lxc_Patches,fwilson42/lxc,cjwatson/lxc,LynxChaus/lxc,Ponce/lxc,ss1h2a3tw/lxc,thmo/lxc,lisongmin/lxc,GreatFruitOmsk/lxc,bostjan/lxc,caglar10ur/lxc,yubo/lxc,efiop/lxc,federicobriata/lxc,lazy404/lxc,glensc/lxc,Distrotech/lxc,ss1h2a3tw/lxc,usc-isi/lxc,ss1h2a3tw/lxc,ecarrara/lxc,bmoar/lxc,ostap/lxc,fwilson42/lxc,ksperis/lxc,regit/lxc,GreatFruitOmsk/lxc,lisongmin/lxc,jirislaby/lxc,JohnPeacockMessageSystems/lxc,glensc/lxc,ioops/lxc,codebauss/lxc,coconutpilot/lxc-gentoo-new,Distrotech/lxc,bmoar/lxc,usc-isi/lxc,virajs/lxc,abstrakraft/lxc-android-lxc,cipriancraciun/lxc,JohnPeacockMessageSystems/lxc,rldleblanc/lxc,christiaan/lxc,ojkastl/lxc_Patches,caglar10ur/lxc,lazy404/lxc,ysbnim/lxc,potatosalad/lxc,terceiro/lxc,caglar10ur/lxc,smoser/lxc,usc-isi/lxc,rldleblanc/lxc,JohnPeacockMessageSystems/lxc,ksperis/lxc,hallyn/lxc,ysbnim/lxc,rldleblanc/lxc,Pelagicore/lxc,codebauss/lxc,coconutpilot/lxc-gentoo-new,sapun/lxc,Pelagicore/lxc,inokappa/lxc,thmo/lxc,efiop/lxc,ojkastl/lxc_Patches,efiop/lxc,ysbnim/lxc,tych0/lxc,weizhenwei/lxc,Pelagicore/lxc,virajs/lxc,federicobriata/lxc,DarknessBeforeDawn/lxc,rowhit/lxc,weizhenwei/lxc,LynxChaus/lxc,QingweiPeterLan/cs188-lxc,DarknessBeforeDawn/lxc,szaszg/lxc,terceiro/lxc,hallyn/lxc,lazy404/lxc,sapun/lxc,aeris/lxc,ioops/lxc,major/lxc,hfuCN/lxc,hkjolhede/lxc,aeris/lxc,aeris/lxc,jirislaby/lxc,fwilson42/lxc,smoser/lxc,terceiro/lxc,glensc/lxc,weizhenwei/lxc,bmoar/lxc,major/lxc,LynxChaus/lxc,ecarrara/lxc,yubo/lxc,Ponce/lxc,thmo/lxc,armcc/lxc,smoser/lxc,yubo/lxc,ostap/lxc,akshaykarle/lxc,federicobriata/lxc,armcc/lxc,regit/lxc,cjwatson/lxc,rowhit/lxc,jirislaby/lxc,inokappa/lxc,kylef/lxc,tych0/lxc,bostjan/lxc,rowhit/lxc,akshaykarle/lxc,hfuCN/lxc,ojkastl/lxc_Patches