Ignore invalid symlinks
Ignore invalid symlinks

Fixes #639

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