Limit the version of mock for Python 2.6
Limit the version of mock for Python 2.6

kubikusrubikus/mkdocs,justinkinney/mkdocs,cnbin/mkdocs,nicoddemus/mkdocs,cnbin/mkdocs,ramramps/mkdocs,jeoygin/mkdocs,justinkinney/mkdocs,jeoygin/mkdocs,d0ugal/mkdocs,williamjmorenor/mkdocs,lukfor/mkdocs,ramramps/mkdocs,samuelcolvin/mkdocs,michaelmcandrew/mkdocs,cnbin/mkdocs,dmehra/mkdocs,rickpeters/mkdocs,gregelin/mkdocs,waylan/mkdocs,waylan/mkdocs,davidgillies/mkdocs,gregelin/mkdocs,vi4m/mkdocs,jimporter/mkdocs,mkdocs/mkdocs,d0ugal/mkdocs,tedmiston/mkdocs,kubikusrubikus/mkdocs,rickpeters/mkdocs,samuelcolvin/mkdocs,lbenet/mkdocs,davidgillies/mkdocs,gregelin/mkdocs,jimporter/mkdocs,longjl/mkdocs,mkdocs/mkdocs,vi4m/mkdocs,tedmiston/mkdocs,fujita-shintaro/mkdocs,kubikusrubikus/mkdocs,mlzummo/mkdocs,jamesbeebop/mkdocs,pjbull/mkdocs,dmehra/mkdocs,lbenet/mkdocs,fujita-shintaro/mkdocs,davidgillies/mkdocs,peter1000/mkdocs,mlzummo/mkdocs,jamesbeebop/mkdocs,longjl/mkdocs,fujita-shintaro/mkdocs,pjbull/mkdocs,d0ugal/mkdocs,vi4m/mkdocs,longjl/mkdocs,lukfor/mkdocs,lbenet/mkdocs,hhg2288/mkdocs,ramramps/mkdocs,jimporter/mkdocs,mlzummo/mkdocs,peter1000/mkdocs,hhg2288/mkdocs,simonfork/mkdocs,michaelmcandrew/mkdocs,williamjmorenor/mkdocs,williamjmorenor/mkdocs,nicoddemus/mkdocs,jamesbeebop/mkdocs,nicoddemus/mkdocs,jeoygin/mkdocs,lukfor/mkdocs,mkdocs/mkdocs,hhg2288/mkdocs,simonfork/mkdocs,justinkinney/mkdocs,samuelcolvin/mkdocs,dmehra/mkdocs,waylan/mkdocs,peter1000/mkdocs,simonfork/mkdocs,michaelmcandrew/mkdocs,pjbull/mkdocs,tedmiston/mkdocs,rickpeters/mkdocs