slugbuilder: Use our fork of staticfile buildpack temporarily
slugbuilder: Use our fork of staticfile buildpack temporarily

It includes a patch that chooses the correct build of nginx.

Signed-off-by: Jonathan Rudenberg <3692bfa45759a67d83aedf0045f6cb635a966abf@titanous.com>
justintung/flynn,ozum/flynn,shads196770/flynn,philiplb/flynn,TribeMedia/flynn,philiplb/flynn,pkdevbox/flynn,justintung/flynn,justintung/flynn,pkdevbox/flynn,GrimDerp/flynn,kgrz/flynn,shads196770/flynn,clifff/flynn,whouses/flynn,whouses/flynn,flynn/flynn,flynn/flynn,ozum/flynn,philiplb/flynn,kgrz/flynn,TribeMedia/flynn,whouses/flynn,lmars/flynn,benbjohnson/flynn,technosophos/flynn,rikur/flynn,technosophos/flynn,schatt/flynn,rikur/flynn,technosophos/flynn,Brandywine2161/flynn,josephglanville/flynn,supermario/flynn,ozum/flynn,technosophos/flynn,kgrz/flynn,pkdevbox/flynn,shads196770/flynn,GrimDerp/flynn,GrimDerp/flynn,jzila/flynn,benbjohnson/flynn,Brandywine2161/flynn,pkdevbox/flynn,TribeMedia/flynn,benbjohnson/flynn,clifff/flynn,TribeMedia/flynn,supermario/flynn,schatt/flynn,ozum/flynn,josephglanville/flynn,supermario/flynn,whouses/flynn,supermario/flynn,Brandywine2161/flynn,jzila/flynn,whouses/flynn,jzila/flynn,flynn/flynn,GrimDerp/flynn,clifff/flynn,kgrz/flynn,whouses/flynn,rikur/flynn,pkdevbox/flynn,clifff/flynn,shads196770/flynn,rikur/flynn,kgrz/flynn,benbjohnson/flynn,benbjohnson/flynn,ozum/flynn,justintung/flynn,kgrz/flynn,flynn/flynn,rikur/flynn,TribeMedia/flynn,josephglanville/flynn,supermario/flynn,josephglanville/flynn,schatt/flynn,jzila/flynn,clifff/flynn,Brandywine2161/flynn,rikur/flynn,schatt/flynn,Brandywine2161/flynn,schatt/flynn,schatt/flynn,josephglanville/flynn,lmars/flynn,supermario/flynn,technosophos/flynn,jzila/flynn,justintung/flynn,philiplb/flynn,flynn/flynn,lmars/flynn,josephglanville/flynn,pkdevbox/flynn,lmars/flynn,Brandywine2161/flynn,TribeMedia/flynn,shads196770/flynn,justintung/flynn,jzila/flynn,clifff/flynn,philiplb/flynn,ozum/flynn,shads196770/flynn,lmars/flynn,benbjohnson/flynn,GrimDerp/flynn,GrimDerp/flynn