Updates README to reflect the removal of the default and all_tests rake tasks.
Updates README to reflect the removal of the default and all_tests rake tasks.

[Fixes #1557]

wolfieorama/spree,beni55/spree,thogg4/spree,jordan-brough/solidus,KMikhaylovCTG/spree,Lostmyname/spree,KMikhaylovCTG/spree,Mayvenn/spree,tomash/spree,cutefrank/spree,Ropeney/spree,volpejoaquin/spree,jhawthorn/spree,radarseesradar/spree,TrialGuides/spree,project-eutopia/spree,woboinc/spree,NerdsvilleCEO/spree,pervino/solidus,shioyama/spree,vinayvinsol/spree,FadliKun/spree,richardnuno/solidus,caiqinghua/spree,shekibobo/spree,judaro13/spree-fork,berkes/spree,codesavvy/sandbox,wolfieorama/spree,carlesjove/spree,LBRapid/spree,nooysters/spree,rbngzlv/spree,SadTreeFriends/spree,sliaquat/spree,forkata/solidus,Hawaiideveloper/shoppingcart,lzcabrera/spree-1-3-stable,CJMrozek/spree,Ropeney/spree,ahmetabdi/spree,robodisco/spree,FadliKun/spree,cutefrank/spree,kewaunited/spree,KMikhaylovCTG/spree,yiqing95/spree,ahmetabdi/spree,grzlus/spree,degica/spree,vulk/spree,jspizziri/spree,gautamsawhney/spree,xuewenfei/solidus,jimblesm/spree,lyzxsc/spree,reinaris/spree,jordan-brough/solidus,Engeltj/spree,pervino/spree,agient/agientstorefront,bricesanchez/spree,lyzxsc/spree,mindvolt/spree,vcavallo/spree,wolfieorama/spree,jparr/spree,ramkumar-kr/spree,jaspreet21anand/spree,beni55/spree,alepore/spree,vulk/spree,alvinjean/spree,vmatekole/spree,adaddeo/spree,njerrywerry/spree,Machpowersystems/spree_mach,rajeevriitm/spree,yiqing95/spree,Senjai/solidus,jspizziri/spree,gautamsawhney/spree,jeffboulet/spree,mindvolt/spree,RatioClothing/spree,net2b/spree,Boomkat/spree,ckk-scratch/solidus,knuepwebdev/FloatTubeRodHolders,Nevensoft/spree,DarkoP/spree,quentinuys/spree,groundctrl/spree,jhawthorn/spree,hifly/spree,richardnuno/solidus,bonobos/solidus,net2b/spree,Senjai/spree,yushine/spree,radarseesradar/spree,joanblake/spree,locomotivapro/spree,Senjai/spree,radarseesradar/spree,dandanwei/spree,Senjai/solidus,vmatekole/spree,Lostmyname/spree,kitwalker12/spree,codesavvy/sandbox,siddharth28/spree,tancnle/spree,sfcgeorge/spree,adaddeo/spree,CJMrozek/spree,Senjai/spree,nooysters/spree,devilcoders/solidus,Arpsara/solidus,derekluo/spree,joanblake/spree,vcavallo/spree,ayb/spree,ujai/spree,Boomkat/spree,welitonfreitas/spree,biagidp/spree,robodisco/spree,volpejoaquin/spree,quentinuys/spree,keatonrow/spree,surfdome/spree,pulkit21/spree,assembledbrands/spree,degica/spree,dotandbo/spree,watg/spree,rakibulislam/spree,raow/spree,archSeer/spree,builtbybuffalo/spree,karlitxo/spree,grzlus/solidus,piousbox/spree,nooysters/spree,vinayvinsol/spree,karlitxo/spree,tesserakt/clean_spree,lsirivong/solidus,kewaunited/spree,JuandGirald/spree,beni55/spree,fahidnasir/spree,derekluo/spree,caiqinghua/spree,athal7/solidus,sliaquat/spree,mleglise/spree,madetech/spree,ahmetabdi/spree,robodisco/spree,alepore/spree,APohio/spree,mindvolt/spree,JDutil/spree,karlitxo/spree,lyzxsc/spree,Mayvenn/spree,bricesanchez/spree,builtbybuffalo/spree,ramkumar-kr/spree,progsri/spree,TimurTarasenko/spree,firman/spree,progsri/spree,CiscoCloud/spree,siddharth28/spree,ckk-scratch/solidus,jasonfb/spree,jaspreet21anand/spree,RatioClothing/spree,lsirivong/solidus,tomash/spree,forkata/solidus,vcavallo/spree,urimikhli/spree,pjmj777/spree,patdec/spree,calvinl/spree,net2b/spree,maybii/spree,APohio/spree,raow/spree,shaywood2/spree,CiscoCloud/spree,TimurTarasenko/spree,njerrywerry/spree,sideci-sample/sideci-sample-spree,locomotivapro/spree,yomishra/pce,hoanghiep90/spree,Hates/spree,reidblomquist/spree,builtbybuffalo/spree,derekluo/spree,Hates/spree,dotandbo/spree,moneyspyder/spree,jparr/spree,azclick/spree,Hawaiideveloper/shoppingcart,welitonfreitas/spree,siddharth28/spree,njerrywerry/spree,carlesjove/spree,miyazawatomoka/spree,jordan-brough/spree,StemboltHQ/spree,pulkit21/spree,carlesjove/spree,zaeznet/spree,firman/spree,NerdsvilleCEO/spree,caiqinghua/spree,lsirivong/solidus,AgilTec/spree,jimblesm/spree,camelmasa/spree,APohio/spree,grzlus/spree,devilcoders/solidus,bricesanchez/spree,rbngzlv/spree,tailic/spree,agient/agientstorefront,surfdome/spree,yiqing95/spree,Arpsara/solidus,robodisco/spree,madetech/spree,scottcrawford03/solidus,jparr/spree,dafontaine/spree,LBRapid/spree,priyank-gupta/spree,vinsol/spree,Machpowersystems/spree_mach,orenf/spree,tailic/spree,FadliKun/spree,jimblesm/spree,project-eutopia/spree,DarkoP/spree,NerdsvilleCEO/spree,hifly/spree,sunny2601/spree,useiichi/spree,Mayvenn/spree,JuandGirald/spree,thogg4/spree,surfdome/spree,judaro13/spree-fork,edgward/spree,pervino/solidus,moneyspyder/spree,Lostmyname/spree,RatioClothing/spree,dotandbo/spree,AgilTec/spree,Ropeney/spree,orenf/spree,shaywood2/spree,madetech/spree,wolfieorama/spree,jeffboulet/spree,softr8/spree,vinayvinsol/spree,jspizziri/spree,volpejoaquin/spree,raow/spree,priyank-gupta/spree,Senjai/solidus,grzlus/spree,patdec/spree,rakibulislam/spree,PhoenixTeam/spree_phoenix,miyazawatomoka/spree,forkata/solidus,miyazawatomoka/spree,tancnle/spree,project-eutopia/spree,zamiang/spree,lzcabrera/spree-1-3-stable,watg/spree,Boomkat/spree,dotandbo/spree,trigrass2/spree,Kagetsuki/spree,reidblomquist/spree,agient/agientstorefront,delphsoft/spree-store-ballchair,lzcabrera/spree-1-3-stable,fahidnasir/spree,kitwalker12/spree,delphsoft/spree-store-ballchair,DynamoMTL/spree,alepore/spree,Arpsara/solidus,reinaris/spree,edgward/spree,athal7/solidus,builtbybuffalo/spree,yiqing95/spree,fahidnasir/spree,archSeer/spree,CiscoCloud/spree,pulkit21/spree,alejandromangione/spree,jordan-brough/spree,sliaquat/spree,vinsol/spree,kitwalker12/spree,camelmasa/spree,trigrass2/spree,tancnle/spree,jhawthorn/spree,xuewenfei/solidus,reidblomquist/spree,zamiang/spree,gregoryrikson/spree-sample,dafontaine/spree,reinaris/spree,SadTreeFriends/spree,PhoenixTeam/spree_phoenix,omarsar/spree,knuepwebdev/FloatTubeRodHolders,rajeevriitm/spree,hoanghiep90/spree,yushine/spree,Antdesk/karpal-spree,useiichi/spree,bjornlinder/Spree,vinsol/spree,sunny2601/spree,sunny2601/spree,reidblomquist/spree,azranel/spree,shioyama/spree,jimblesm/spree,Nevensoft/spree,DynamoMTL/spree,agient/agientstorefront,ayb/spree,lsirivong/spree,richardnuno/solidus,calvinl/spree,jsurdilla/solidus,thogg4/spree,dafontaine/spree,useiichi/spree,pervino/spree,Boomkat/spree,grzlus/spree,alvinjean/spree,keatonrow/spree,jaspreet21anand/spree,alejandromangione/spree,brchristian/spree,scottcrawford03/solidus,priyank-gupta/spree,Migweld/spree,camelmasa/spree,archSeer/spree,JuandGirald/spree,SadTreeFriends/spree,jasonfb/spree,vmatekole/spree,hifly/spree,HealthWave/spree,biagidp/spree,woboinc/spree,tesserakt/clean_spree,priyank-gupta/spree,zaeznet/spree,judaro13/spree-fork,FadliKun/spree,omarsar/spree,abhishekjain16/spree,rajeevriitm/spree,omarsar/spree,berkes/spree,jordan-brough/solidus,alejandromangione/spree,athal7/solidus,progsri/spree,surfdome/spree,grzlus/solidus,abhishekjain16/spree,ramkumar-kr/spree,Hawaiideveloper/shoppingcart,woboinc/spree,moneyspyder/spree,lsirivong/spree,StemboltHQ/spree,Engeltj/spree,quentinuys/spree,yomishra/pce,jordan-brough/solidus,xuewenfei/solidus,lsirivong/spree,cutefrank/spree,KMikhaylovCTG/spree,jasonfb/spree,APohio/spree,firman/spree,softr8/spree,orenf/spree,Ropeney/spree,Senjai/solidus,AgilTec/spree,edgward/spree,sideci-sample/sideci-sample-spree,biagidp/spree,sunny2601/spree,sideci-sample/sideci-sample-spree,jeffboulet/spree,pervino/solidus,Hates/spree,Engeltj/spree,project-eutopia/spree,JDutil/spree,Antdesk/karpal-spree,odk211/spree,azranel/spree,tesserakt/clean_spree,Arpsara/solidus,sliaquat/spree,jasonfb/spree,berkes/spree,maybii/spree,trigrass2/spree,jordan-brough/spree,xuewenfei/solidus,groundctrl/spree,keatonrow/spree,Nevensoft/spree,keatonrow/spree,jparr/spree,CJMrozek/spree,sfcgeorge/spree,rbngzlv/spree,HealthWave/spree,dandanwei/spree,ramkumar-kr/spree,gautamsawhney/spree,lsirivong/solidus,JDutil/spree,beni55/spree,zamiang/spree,softr8/spree,edgward/spree,pervino/solidus,urimikhli/spree,DynamoMTL/spree,jspizziri/spree,imella/spree,adaddeo/spree,zaeznet/spree,raow/spree,Mayvenn/spree,delphsoft/spree-store-ballchair,Migweld/spree,pervino/spree,fahidnasir/spree,pulkit21/spree,mleglise/spree,odk211/spree,piousbox/spree,scottcrawford03/solidus,sfcgeorge/spree,dandanwei/spree,jeffboulet/spree,thogg4/spree,LBRapid/spree,Engeltj/spree,ayb/spree,assembledbrands/spree,orenf/spree,miyazawatomoka/spree,DarkoP/spree,welitonfreitas/spree,mleglise/spree,ahmetabdi/spree,siddharth28/spree,shioyama/spree,patdec/spree,gregoryrikson/spree-sample,Machpowersystems/spree_mach,AgilTec/spree,shekibobo/spree,radarseesradar/spree,vmatekole/spree,tomash/spree,hoanghiep90/spree,tancnle/spree,devilcoders/solidus,kewaunited/spree,CiscoCloud/spree,njerrywerry/spree,lyzxsc/spree,jsurdilla/solidus,DarkoP/spree,scottcrawford03/solidus,imella/spree,PhoenixTeam/spree_phoenix,volpejoaquin/spree,Migweld/spree,Kagetsuki/spree,freerunningtech/spree,odk211/spree,codesavvy/sandbox,ujai/spree,moneyspyder/spree,NerdsvilleCEO/spree,devilcoders/solidus,JuandGirald/spree,jsurdilla/solidus,sfcgeorge/spree,ayb/spree,progsri/spree,tomash/spree,degica/spree,pjmj777/spree,calvinl/spree,codesavvy/sandbox,lsirivong/spree,shaywood2/spree,joanblake/spree,groundctrl/spree,hoanghiep90/spree,azclick/spree,assembledbrands/spree,joanblake/spree,camelmasa/spree,richardnuno/solidus,vulk/spree,delphsoft/spree-store-ballchair,JDutil/spree,mindvolt/spree,brchristian/spree,brchristian/spree,dafontaine/spree,shekibobo/spree,rajeevriitm/spree,nooysters/spree,forkata/solidus,piousbox/spree,berkes/spree,alejandromangione/spree,mleglise/spree,kewaunited/spree,freerunningtech/spree,Migweld/spree,gregoryrikson/spree-sample,maybii/spree,vinsol/spree,TrialGuides/spree,knuepwebdev/FloatTubeRodHolders,tesserakt/clean_spree,tailic/spree,zaeznet/spree,alvinjean/spree,abhishekjain16/spree,watg/spree,rbngzlv/spree,TrialGuides/spree,shekibobo/spree,azranel/spree,Hates/spree,pervino/spree,karlitxo/spree,Kagetsuki/spree,quentinuys/spree,dandanwei/spree,Nevensoft/spree,SadTreeFriends/spree,ckk-scratch/solidus,bonobos/solidus,TimurTarasenko/spree,gregoryrikson/spree-sample,yomishra/pce,TimurTarasenko/spree,madetech/spree,bonobos/solidus,welitonfreitas/spree,jsurdilla/solidus,piousbox/spree,omarsar/spree,Lostmyname/spree,softr8/spree,grzlus/solidus,alvinjean/spree,net2b/spree,patdec/spree,calvinl/spree,azranel/spree,CJMrozek/spree,carlesjove/spree,adaddeo/spree,ckk-scratch/solidus,grzlus/solidus,maybii/spree,cutefrank/spree,yushine/spree,StemboltHQ/spree,freerunningtech/spree,useiichi/spree,athal7/solidus,firman/spree,hifly/spree,reinaris/spree,HealthWave/spree,abhishekjain16/spree,bjornlinder/Spree,PhoenixTeam/spree_phoenix,shaywood2/spree,jaspreet21anand/spree,trigrass2/spree,urimikhli/spree,odk211/spree,bjornlinder/Spree,vcavallo/spree,caiqinghua/spree,Kagetsuki/spree,ujai/spree,azclick/spree,rakibulislam/spree,DynamoMTL/spree,rakibulislam/spree,pjmj777/spree,vinayvinsol/spree,TrialGuides/spree,locomotivapro/spree,yushine/spree,brchristian/spree,derekluo/spree,imella/spree,locomotivapro/spree,groundctrl/spree,azclick/spree,gautamsawhney/spree,vulk/spree,bonobos/solidus,archSeer/spree,Antdesk/karpal-spree,zamiang/spree,Hawaiideveloper/shoppingcart