Only skip TLS certificate verification if this is explicitly specified in the config
Only skip TLS certificate verification if this is explicitly specified in the config

Fixes #111

Signed-off-by: Aaron Lehmann <8ecfc6017a87905413dcd7d63696a2a4c351b604@docker.com>

moxiegirl/notary,johnsandiford/notary,andrewhsu/notary,joaofnfernandes/docker.github.io,alexisbellido/docker.github.io,dqminh/notary,danix800/docker.github.io,troy0820/docker.github.io,HuKeping/notary,vikstrous/notary,riyazdf/notary,JimGalasyn/docker.github.io,sanscontext/docker.github.io,LuisBosquez/docker.github.io,bgrissin/notary,londoncalling/docker.github.io,mtrmac/notary,docker-zh/docker.github.io,shubheksha/docker.github.io,shubheksha/docker.github.io,sanscontext/docker.github.io,umayr/notary,jbeda/notary,HuKeping/notary,phiroict/docker,umayr/notary,NathanMcCauley/notary,johnsandiford/notary,joaofnfernandes/docker.github.io,thaJeztah/docker.github.io,docker/notary,jfrazelle/notary,vdemeester/notary,menglingwei/denverdino.github.io,docker-zh/docker.github.io,moxiegirl/notary,gdevillele/docker.github.io,rillig/docker.github.io,BSWANG/denverdino.github.io,menglingwei/denverdino.github.io,denverdino/denverdino.github.io,jzwlqx/denverdino.github.io,vdemeester/notary,shin-/docker.github.io,londoncalling/docker.github.io,gdevillele/docker.github.io,thaJeztah/docker.github.io,thaJeztah/docker.github.io,shin-/docker.github.io,jzwlqx/denverdino.github.io,anweiss/docker.github.io,cyli/notary,BSWANG/denverdino.github.io,minhoryang/notary,anweiss/docker.github.io,aduermael/docker.github.io,bdwill/docker.github.io,cw2018/notary,johnstep/docker.github.io,BSWANG/denverdino.github.io,phiroict/docker,vikstrous/notary,johnstep/docker.github.io,gdevillele/docker.github.io,LuisBosquez/docker.github.io,anweiss/docker.github.io,phiroict/docker,LuisBosquez/docker.github.io,NathanMcCauley/notary,shubheksha/docker.github.io,JimGalasyn/docker.github.io,thaJeztah/docker.github.io,docker/notary,riyazdf/notary,SachinSetiya/notary,joeuo/docker.github.io,anweiss/docker.github.io,dqminh/notary,bdwill/docker.github.io,andrewhsu/notary,dqminh/notary,mtrmac/notary,joeuo/docker.github.io,denverdino/denverdino.github.io,londoncalling/docker.github.io,JimGalasyn/docker.github.io,gdevillele/docker.github.io,docker-zh/docker.github.io,bsmr-docker/notary,docker/docker.github.io,menglingwei/denverdino.github.io,sanscontext/docker.github.io,dnascimento/notary,docker-zh/docker.github.io,thaJeztah/docker.github.io,JimGalasyn/docker.github.io,jfrazelle/notary,rillig/docker.github.io,phiroict/docker,shin-/docker.github.io,johnstep/docker.github.io,anweiss/docker.github.io,bdwill/docker.github.io,moxiegirl/notary,umayr/notary,alexisbellido/docker.github.io,jzwlqx/denverdino.github.io,alexisbellido/docker.github.io,lindenlab/notary,johnstep/docker.github.io,troy0820/docker.github.io,joeuo/docker.github.io,troy0820/docker.github.io,jbeda/notary,cyli/notary,NathanMcCauley/notary,SachinSetiya/notary,andrewhsu/notary,johnstep/docker.github.io,denverdino/denverdino.github.io,shubheksha/docker.github.io,jfrazelle/notary,joeuo/docker.github.io,bsmr-docker/notary,BSWANG/denverdino.github.io,joaofnfernandes/docker.github.io,bdwill/docker.github.io,HuKeping/notary,joaofnfernandes/docker.github.io,danix800/docker.github.io,rillig/docker.github.io,londoncalling/docker.github.io,endophage/notary,shin-/docker.github.io,joaofnfernandes/docker.github.io,docker/docker.github.io,docker/docker.github.io,rillig/docker.github.io,cw2018/notary,phiroict/docker,sjfloat/notary,mtrmac/notary,shubheksha/docker.github.io,docker/notary,JimGalasyn/docker.github.io,BSWANG/denverdino.github.io,denverdino/denverdino.github.io,dnascimento/notary,alexisbellido/docker.github.io,denverdino/docker.github.io,danix800/docker.github.io,aduermael/docker.github.io,bdwill/docker.github.io,sanscontext/docker.github.io,denverdino/denverdino.github.io,endophage/notary,grunya404/notary,grunya404/notary,lindenlab/notary,danix800/docker.github.io,denverdino/docker.github.io,docker/docker.github.io,docker-zh/docker.github.io,vdemeester/notary,denverdino/docker.github.io,gdevillele/docker.github.io,bgrissin/notary,LuisBosquez/docker.github.io,minhoryang/notary,menglingwei/denverdino.github.io,aduermael/docker.github.io,menglingwei/denverdino.github.io,sanscontext/docker.github.io,alexisbellido/docker.github.io,johnsandiford/notary,sjfloat/notary,LuisBosquez/docker.github.io,denverdino/docker.github.io,denverdino/docker.github.io,jzwlqx/denverdino.github.io,aduermael/docker.github.io,joeuo/docker.github.io,cyli/notary,jzwlqx/denverdino.github.io,londoncalling/docker.github.io,shin-/docker.github.io,docker/docker.github.io,endophage/notary,troy0820/docker.github.io