Bump rack
Bump rack

Fixes CVE-2018-16470 and CVE-2018-16471

SuperTux88/diaspora,geraspora/diaspora,geraspora/diaspora,Flaburgan/diaspora,despora/diaspora,jhass/diaspora,SuperTux88/diaspora,diaspora/diaspora,Flaburgan/diaspora,despora/diaspora,despora/diaspora,Flaburgan/diaspora,SuperTux88/diaspora,geraspora/diaspora,geraspora/diaspora,jhass/diaspora,diaspora/diaspora,despora/diaspora,diaspora/diaspora,SuperTux88/diaspora,jhass/diaspora,diaspora/diaspora,jhass/diaspora,Flaburgan/diaspora