Fix one-off containers not linking to service
Fix one-off containers not linking to service

Closes #185.

Need to test this more thoroughly. We need a docker-py mock.

vdemeester/compose,calou/compose,michael-k/docker-compose,aanand/fig,thaJeztah/docker.github.io,johnstep/docker.github.io,Yelp/docker-compose,alunduil/fig,gdevillele/docker.github.io,mrfuxi/compose,docker-zh/docker.github.io,mnuessler/compose,kojiromike/compose,mindaugasrukas/compose,vdemeester/compose,docker-zh/docker.github.io,VinceBarresi/compose,iamluc/compose,JimGalasyn/docker.github.io,unodba/compose,jessekl/compose,bdwill/docker.github.io,schmunk42/compose,brunocascio/compose,aduermael/docker.github.io,JimGalasyn/docker.github.io,bdwill/docker.github.io,mdaue/compose,ionrock/compose,jeanpralo/compose,rillig/docker.github.io,thaJeztah/compose,talolard/compose,kojiromike/compose,docker-zh/docker.github.io,BSWANG/denverdino.github.io,iamluc/compose,anweiss/docker.github.io,BSWANG/denverdino.github.io,talolard/compose,pspierce/compose,jiekechoo/compose,mnuessler/compose,mbailey/compose,TomasTomecek/compose,bobphill/compose,hoogenm/compose,mindaugasrukas/compose,DoubleMalt/compose,dnephin/compose,denverdino/compose,prologic/compose,shakamunyi/fig,dockerhn/compose,noironetworks/compose,jzwlqx/denverdino.github.io,simonista/compose,Katlean/fig,Yelp/docker-compose,denverdino/docker.github.io,joeuo/docker.github.io,johnstep/docker.github.io,mosquito/docker-compose,aduermael/docker.github.io,troy0820/docker.github.io,ekristen/compose,ChrisChinchilla/compose,philwrenn/compose,qzio/compose,anweiss/docker.github.io,tpounds/compose,screwgoth/compose,BSWANG/denverdino.github.io,albers/compose,alexandrev/compose,jgrowl/compose,shubheksha/docker.github.io,zhangspook/compose,cclauss/compose,abesto/fig,kikkomep/compose,jrabbit/compose,charleswhchan/compose,amitsaha/compose,joeuo/docker.github.io,marcusmartins/compose,nhumrich/compose,michael-k/docker-compose,RobertNorthard/compose,joeuo/docker.github.io,tangkun75/compose,dockerhn/compose,xydinesh/compose,anweiss/docker.github.io,gdevillele/docker.github.io,denverdino/denverdino.github.io,bbirand/compose,danix800/docker.github.io,londoncalling/docker.github.io,dopry/compose,mohitsoni/compose,andrewgee/compose,Dakno/compose,au-phiware/compose,artemkaint/compose,prologic/compose,twitherspoon/compose,thieman/compose,twitherspoon/compose,menglingwei/denverdino.github.io,sebglazebrook/compose,cgvarela/compose,xydinesh/compose,calou/compose,MSakamaki/compose,bbirand/compose,jessekl/compose,ekristen/compose,abesto/fig,jorgeLuizChaves/compose,jeanpralo/compose,tangkun75/compose,menglingwei/denverdino.github.io,shin-/compose,viranch/compose,menglingwei/denverdino.github.io,jzwlqx/denverdino.github.io,au-phiware/compose,danix800/docker.github.io,nerro/compose,saada/compose,gdevillele/docker.github.io,sanscontext/docker.github.io,joaofnfernandes/docker.github.io,aduermael/docker.github.io,alexandrev/compose,troy0820/docker.github.io,alunduil/fig,dbdd4us/compose,KalleDK/compose,denverdino/denverdino.github.io,denverdino/docker.github.io,goloveychuk/compose,sanscontext/docker.github.io,nhumrich/compose,hypriot/compose,Dakno/compose,johnstep/docker.github.io,jrabbit/compose,LuisBosquez/docker.github.io,ain/compose,lmesz/compose,philwrenn/compose,phiroict/docker,josephpage/compose,noironetworks/compose,alexisbellido/docker.github.io,Katlean/fig,lukemarsden/compose,dnephin/compose,phiroict/docker,Chouser/compose,phiroict/docker,docker-zh/docker.github.io,shin-/docker.github.io,ain/compose,danix800/docker.github.io,KevinGreene/compose,bdwill/docker.github.io,jgrowl/compose,charleswhchan/compose,glogiotatidis/compose,mosquito/docker-compose,alexisbellido/docker.github.io,pspierce/compose,mbailey/compose,moxiegirl/compose,londoncalling/docker.github.io,benhamill/compose,moxiegirl/compose,heroku/fig,runcom/compose,runcom/compose,ggtools/compose,docker/docker.github.io,cgvarela/compose,joaofnfernandes/docker.github.io,sanscontext/docker.github.io,Chouser/compose,mrfuxi/compose,sanscontext/docker.github.io,denverdino/denverdino.github.io,brunocascio/compose,bcicen/fig,vlajos/compose,joaofnfernandes/docker.github.io,d2bit/compose,mchasal/compose,bcicen/fig,danix800/docker.github.io,LuisBosquez/docker.github.io,funkyfuture/docker-compose,gdevillele/docker.github.io,JimGalasyn/docker.github.io,sdurrheimer/compose,marcusmartins/compose,hypriot/compose,unodba/compose,docker/docker.github.io,aanand/fig,ZJaffee/compose,sdurrheimer/compose,denverdino/docker.github.io,dilgerma/compose,heroku/fig,browning/compose,phiroict/docker,swoopla/compose,bsmr-docker/compose,viranch/compose,TomasTomecek/compose,ouziel-slama/compose,shubheksha/docker.github.io,feelobot/compose,KevinGreene/compose,LuisBosquez/docker.github.io,lmesz/compose,BSWANG/denverdino.github.io,VinceBarresi/compose,gdevillele/docker.github.io,RobertNorthard/compose,shin-/docker.github.io,ralphtheninja/compose,londoncalling/docker.github.io,alexisbellido/docker.github.io,hoogenm/compose,rgbkrk/compose,dbdd4us/compose,rstacruz/compose,rillig/docker.github.io,bsmr-docker/compose,genki/compose,benhamill/compose,bdwill/docker.github.io,jzwlqx/denverdino.github.io,JimGalasyn/docker.github.io,bfirsh/fig,anweiss/docker.github.io,mdaue/compose,ph-One/compose,jiekechoo/compose,nerro/compose,docker-zh/docker.github.io,ouziel-slama/compose,BSWANG/denverdino.github.io,LuisBosquez/docker.github.io,lukemarsden/compose,ionrock/compose,londoncalling/docker.github.io,MSakamaki/compose,sanscontext/docker.github.io,shubheksha/docker.github.io,ph-One/compose,DoubleMalt/compose,tiry/compose,shin-/docker.github.io,mark-adams/compose,j-fuentes/compose,phiroict/docker,thaJeztah/docker.github.io,denverdino/docker.github.io,joeuo/docker.github.io,ralphtheninja/compose,shakamunyi/fig,andrewgee/compose,troy0820/docker.github.io,dilgerma/compose,denverdino/denverdino.github.io,tiry/compose,artemkaint/compose,thaJeztah/docker.github.io,zhangspook/compose,aduermael/docker.github.io,menglingwei/denverdino.github.io,bfirsh/fig,schmunk42/compose,j-fuentes/compose,anweiss/docker.github.io,qzio/compose,docker/docker.github.io,mnowster/compose,rillig/docker.github.io,uvgroovy/compose,jorgeLuizChaves/compose,uvgroovy/compose,menglingwei/denverdino.github.io,bdwill/docker.github.io,bobphill/compose,heroku/fig,rgbkrk/compose,genki/compose,gtrdotmcs/compose,shin-/docker.github.io,GM-Alex/compose,rillig/docker.github.io,shin-/docker.github.io,rstacruz/compose,swoopla/compose,funkyfuture/docker-compose,joaofnfernandes/docker.github.io,thieman/compose,troy0820/docker.github.io,docker/docker.github.io,denverdino/docker.github.io,docker/docker.github.io,JimGalasyn/docker.github.io,ZJaffee/compose,mark-adams/compose,screwgoth/compose,d2bit/compose,browning/compose,shin-/compose,mchasal/compose,amitsaha/compose,jonaseck2/compose,simonista/compose,TheDataShed/compose,shubheksha/docker.github.io,bcicen/fig,sebglazebrook/compose,ChrisChinchilla/compose,mnowster/compose,TheDataShed/compose,thaJeztah/docker.github.io,johnstep/docker.github.io,thaJeztah/compose,ggtools/compose,joeuo/docker.github.io,joaofnfernandes/docker.github.io,denverdino/compose,glogiotatidis/compose,goloveychuk/compose,saada/compose,alexisbellido/docker.github.io,alexisbellido/docker.github.io,dopry/compose,jzwlqx/denverdino.github.io,jzwlqx/denverdino.github.io,KalleDK/compose,gtrdotmcs/compose,kikkomep/compose,LuisBosquez/docker.github.io,cclauss/compose,johnstep/docker.github.io,jonaseck2/compose,denverdino/denverdino.github.io,shubheksha/docker.github.io,vlajos/compose,GM-Alex/compose,tpounds/compose,mohitsoni/compose,feelobot/compose,josephpage/compose,thaJeztah/docker.github.io,londoncalling/docker.github.io,albers/compose