ENTRYPOINT: allow overriding entrypoint..
ENTRYPOINT: allow overriding entrypoint..

  As per Docker-Library best practices, it's best to  allow  over-
  riding ENTRYPOINT, when needed by checking  for  "-"  arguments.
  `docker run -it chronos` is possible, and so is  passing  flags:
  `docker run -it chronos --help` will work as  expected / before.
  Now `docker run -it chronos /bin/bash` and similar is  possible.
  See https://github.com/docker-library/official-images/issues/692

cgvarela/chronos,hamo/chronos,motusllc/chronos,tdooner/chronos,clearstorydata/chronos,KyleJamesWalker/chronos,wangtuanjie/chronos,hermansc/chronos,BoopBoopBeepBoop/chronos,kapil-malik/chronos,rickfast/chronos,fengshao0907/chronos,bussiere/chronos,wangtuanjie/chronos,wrmsr/chronos,mwasn/chronos,hamo/chronos,byxorna/chronos,KyleJamesWalker/chronos,flixster/chronos,ryane/chronos,byxorna/chronos,tdooner/chronos,solarkennedy/chronos,xdevelsistemas/chronos,shahankhatch/chronos,rapidoo/chronos,turb/chronos,mwasn/chronos,solarkennedy/chronos,lionelnicolas/chronos,hermansc/chronos,debugger87/chronos,mikkokupsu/chronos,v1k0d3n/chronos,motusllc/chronos,flixster/chronos,tdooner/chronos,pekermert/chronos,erSitzt/chronos,mikkokupsu/chronos,Jimdo/chronos,wndhydrnt/chronos,SleepyThread/chronos,mesos/chronos,turb/chronos,clearstorydata/chronos,wrmsr/chronos,debugger87/chronos,hamo/chronos,josephcopenhaver/chronos,erSitzt/chronos,byxorna/chronos,vixns/chronos,tony-kerz/chronos,Jimdo/chronos,lionelnicolas/chronos,hamo/chronos,wrmsr/chronos,byxorna/chronos,solarkennedy/chronos,wangtuanjie/chronos,rickfast/chronos,mesos/chronos,fengshao0907/chronos,lionelnicolas/chronos,flyinprogrammer/chronos,wndhydrnt/chronos,hermansc/chronos,lionelnicolas/chronos,mesos/chronos,ryane/chronos,mwasn/chronos,rapidoo/chronos,flyinprogrammer/chronos,jibaro/chronos-1,ryane/chronos,tony-kerz/chronos,kapil-malik/chronos,vixns/chronos,turb/chronos,bussiere/chronos,wangtuanjie/chronos,fengshao0907/chronos,kapil-malik/chronos,v1k0d3n/chronos,mikkokupsu/chronos,xdevelsistemas/chronos,fengshao0907/chronos,xdevelsistemas/chronos,wrmsr/chronos,Jimdo/chronos,BoopBoopBeepBoop/chronos,tony-kerz/chronos,flixster/chronos,jibaro/chronos-1,cgvarela/chronos,SleepyThread/chronos,debugger87/chronos,cgvarela/chronos,pekermert/chronos,tdooner/chronos,josephcopenhaver/chronos,clearstorydata/chronos,flyinprogrammer/chronos,BoopBoopBeepBoop/chronos,jibaro/chronos-1,SleepyThread/chronos,erSitzt/chronos,hermansc/chronos,KyleJamesWalker/chronos,v1k0d3n/chronos,cgvarela/chronos,ryane/chronos,kapil-malik/chronos,wndhydrnt/chronos,tony-kerz/chronos,rapidoo/chronos,clearstorydata/chronos,flyinprogrammer/chronos,motusllc/chronos,motusllc/chronos,shahankhatch/chronos,rapidoo/chronos,flixster/chronos,vixns/chronos,josephcopenhaver/chronos,vixns/chronos,shahankhatch/chronos,pekermert/chronos,v1k0d3n/chronos,wndhydrnt/chronos,mwasn/chronos,bussiere/chronos,erSitzt/chronos,bussiere/chronos,debugger87/chronos,solarkennedy/chronos,xdevelsistemas/chronos,jibaro/chronos-1,rickfast/chronos,turb/chronos,josephcopenhaver/chronos,SleepyThread/chronos,Jimdo/chronos,BoopBoopBeepBoop/chronos,shahankhatch/chronos,KyleJamesWalker/chronos,mikkokupsu/chronos,pekermert/chronos,mesos/chronos,rickfast/chronos