Added a version flag to print the version of cAdvisor per #329.
Added a version flag to print the version of cAdvisor per #329.

dchen1107/cadvisor,megamsys/cadvisor,ncdc/cadvisor,kmicheal/cadvisor,IFTTT/cadvisor,derwolfe/cadvisor,ncdc/cadvisor,jzaefferer/cadvisor,takecy/cadvisor,bpradipt/cadvisor,linux-on-ibm-z/cadvisor,cnaize/cadvisor,derekwaynecarr/cadvisor,yolkov/cadvisor,derwolfe/cadvisor,timstclair/cadvisor,hacpai/cadvisor,f0/cadvisor,BrickXu/cadvisor,Snorch/cadvisor,hw-qiaolei/cadvisor,jhjeong-kr/cadvisor,yifan-gu/cadvisor,f0/cadvisor,yolkov/cadvisor,dchen1107/cadvisor,mesosphere/cadvisor,yifan-gu/cadvisor,mangalaman93/cadvisor,bpradipt/cadvisor,wulonghui/cadvisor,kateknister/cadvisor,cnaize/cadvisor,jimmidyson/cadvisor,BrickXu/cadvisor,rajthilakmca/cadvisor,afein/cadvisor,vegasbrianc/cadvisor,feiskyer/cadvisor,atyenoria/cadvisor,carmark/cadvisor,kmicheal/cadvisor,bing6/cadvisor,whosthatknocking/cadvisor,atyenoria/cadvisor,c-st/cadvisor,timstclair/cadvisor,aivarasko/cadvisor,ncdc/cadvisor,vegasbrianc/cadvisor,bowlofstew/cadvisor,wulonghui/cadvisor,dchen1107/cadvisor,BrickXu/cadvisor,ncdc/cadvisor,feiskyer/cadvisor,ncdc/cadvisor,difro/cadvisor,guoshimin/cadvisor,c-st/cadvisor,shilpamayanna/cadvisor,linux-on-ibm-z/cadvisor,CrazyJvm/cadvisor,feiskyer/cadvisor,whosthatknocking/cadvisor,pwittrock/cadvisor,Clever/cadvisor,anarcher/cadvisor,bing6/cadvisor,aivarasko/cadvisor,cnaize/cadvisor,derekwaynecarr/cadvisor,morpheyesh/cadvisor,jzaefferer/cadvisor,jimonreal/cadvisor,jimmidyson/cadvisor,vmarmol/cadvisor,bowlofstew/cadvisor,megamsys/cadvisor,IFTTT/cadvisor,erSitzt/cadvisor,jmaitrehenry/cadvisor,bpradipt/cadvisor,vmarmol/cadvisor,mesosphere/cadvisor,datawisesystems/cadvisor,derekwaynecarr/cadvisor,guoshimin/cadvisor,f0/cadvisor,Snorch/cadvisor,Snorch/cadvisor,ainsleyc/cadvisor,IFTTT/cadvisor,jhjeong-kr/cadvisor,kateknister/cadvisor,BrickXu/cadvisor,vishh/cadvisor,shilpamayanna/cadvisor,dalanlan/cadvisor,jimonreal/cadvisor,ChengTiesheng/cadvisor,dalanlan/cadvisor,jmaitrehenry/cadvisor,hzy001/cadvisor,hw-qiaolei/cadvisor,hw-qiaolei/cadvisor,vishh/cadvisor,jhjeong-kr/cadvisor,mr-justin/cadvisor,wulonghui/cadvisor,mangalaman93/cadvisor,bing6/cadvisor,BrickXu/cadvisor,dchen1107/cadvisor,jhjeong-kr/cadvisor,afein/cadvisor,difro/cadvisor,jimmidyson/cadvisor,c-st/cadvisor,hacpai/cadvisor,IFTTT/cadvisor,rajthilakmca/cadvisor,kmicheal/cadvisor,pwittrock/cadvisor,ainsleyc/cadvisor,f0/cadvisor,mr-justin/cadvisor,morpheyesh/cadvisor,timstclair/cadvisor,rjnagal/cadvisor,erSitzt/cadvisor,derekwaynecarr/cadvisor,anarcher/cadvisor,ChengTiesheng/cadvisor,takecy/cadvisor,erSitzt/cadvisor,normanjoyner/cadvisor,pwittrock/cadvisor,jhjeong-kr/cadvisor,hzy001/cadvisor,vishh/cadvisor,f0/cadvisor,carmark/cadvisor,rjnagal/cadvisor,datawisesystems/cadvisor,derwolfe/cadvisor,rjnagal/cadvisor,IFTTT/cadvisor,aivarasko/cadvisor,mesosphere/cadvisor,vmarmol/cadvisor,anarcher/cadvisor,dalanlan/cadvisor,jmaitrehenry/cadvisor,Clever/cadvisor,derekwaynecarr/cadvisor,yifan-gu/cadvisor,jzaefferer/cadvisor,kateknister/cadvisor,guoshimin/cadvisor,mangalaman93/cadvisor,erSitzt/cadvisor,Clever/cadvisor,difro/cadvisor,erSitzt/cadvisor,mr-justin/cadvisor,hacpai/cadvisor,atyenoria/cadvisor,whosthatknocking/cadvisor,vegasbrianc/cadvisor,dchen1107/cadvisor,rajthilakmca/cadvisor,normanjoyner/cadvisor,bowlofstew/cadvisor,ChengTiesheng/cadvisor,takecy/cadvisor,CrazyJvm/cadvisor,hzy001/cadvisor,ainsleyc/cadvisor,linux-on-ibm-z/cadvisor,jimonreal/cadvisor,yolkov/cadvisor,ainsleyc/cadvisor,CrazyJvm/cadvisor