Fixes #5607
Fixes #5607

Added optional properties to the Assets.json to support separating watch and build lists.
Also added support for excluding sourcemaps as well as forcing rebuild.

Requires gulp-notify (added fancier notification for process completion).
abhishekluv/Orchard,huoxudong125/Orchard,TalaveraTechnologySolutions/Orchard,emretiryaki/Orchard,grapto/Orchard.CloudBust,luchaoshuai/Orchard,mvarblow/Orchard,armanforghani/Orchard,planetClaire/Orchard-LETS,LaserSrl/Orchard,bedegaming-aleksej/Orchard,hbulzy/Orchard,JRKelso/Orchard,armanforghani/Orchard,kouweizhong/Orchard,qt1/Orchard,vairam-svs/Orchard,li0803/Orchard,openbizgit/Orchard,cooclsee/Orchard,sfmskywalker/Orchard-Off-The-Grid-Sample-Code,AdvantageCS/Orchard,Fogolan/OrchardForWork,jchenga/Orchard,TaiAivaras/Orchard,oxwanawxo/Orchard,kouweizhong/Orchard,enspiral-dev-academy/Orchard,IDeliverable/Orchard,omidnasri/Orchard,JRKelso/Orchard,MetSystem/Orchard,bedegaming-aleksej/Orchard,yersans/Orchard,fortunearterial/Orchard,Ermesx/Orchard,dburriss/Orchard,omidnasri/Orchard,vairam-svs/Orchard,escofieldnaxos/Orchard,IDeliverable/Orchard,geertdoornbos/Orchard,xkproject/Orchard,SouleDesigns/SouleDesigns.Orchard,fortunearterial/Orchard,xiaobudian/Orchard,DonnotRain/Orchard,planetClaire/Orchard-LETS,Sylapse/Orchard.HttpAuthSample,yonglehou/Orchard,geertdoornbos/Orchard,kgacova/Orchard,jimasp/Orchard,omidnasri/Orchard,johnnyqian/Orchard,jtkech/Orchard,hannan-azam/Orchard,infofromca/Orchard,dburriss/Orchard,qt1/Orchard,Lombiq/Orchard,abhishekluv/Orchard,fassetar/Orchard,geertdoornbos/Orchard,huoxudong125/Orchard,infofromca/Orchard,jagraz/Orchard,dozoft/Orchard,TaiAivaras/Orchard,jtkech/Orchard,hannan-azam/Orchard,jersiovic/Orchard,sfmskywalker/Orchard-Off-The-Grid-Sample-Code,grapto/Orchard.CloudBust,jerryshi2007/Orchard,yersans/Orchard,TaiAivaras/Orchard,Sylapse/Orchard.HttpAuthSample,grapto/Orchard.CloudBust,harmony7/Orchard,gcsuk/Orchard,RoyalVeterinaryCollege/Orchard,alejandroaldana/Orchard,sfmskywalker/Orchard-Off-The-Grid-Sample-Code,harmony7/Orchard,li0803/Orchard,TalaveraTechnologySolutions/Orchard,fassetar/Orchard,abhishekluv/Orchard,SzymonSel/Orchard,Ermesx/Orchard,sfmskywalker/Orchard-Off-The-Grid-Sample-Code,enspiral-dev-academy/Orchard,geertdoornbos/Orchard,vairam-svs/Orchard,dburriss/Orchard,tobydodds/folklife,neTp9c/Orchard,jagraz/Orchard,li0803/Orchard,geertdoornbos/Orchard,AdvantageCS/Orchard,sfmskywalker/Orchard,Lombiq/Orchard,jersiovic/Orchard,jtkech/Orchard,kgacova/Orchard,dozoft/Orchard,phillipsj/Orchard,spraiin/Orchard,fortunearterial/Orchard,aaronamm/Orchard,Lombiq/Orchard,RoyalVeterinaryCollege/Orchard,Serlead/Orchard,grapto/Orchard.CloudBust,AdvantageCS/Orchard,bedegaming-aleksej/Orchard,tobydodds/folklife,enspiral-dev-academy/Orchard,oxwanawxo/Orchard,yersans/Orchard,brownjordaninternational/OrchardCMS,TaiAivaras/Orchard,Fogolan/OrchardForWork,hannan-azam/Orchard,IDeliverable/Orchard,TalaveraTechnologySolutions/Orchard,TalaveraTechnologySolutions/Orchard,fassetar/Orchard,TalaveraTechnologySolutions/Orchard,neTp9c/Orchard,SzymonSel/Orchard,vairam-svs/Orchard,hbulzy/Orchard,dmitry-urenev/extended-orchard-cms-v10.1,Codinlab/Orchard,mvarblow/Orchard,OrchardCMS/Orchard,dcinzona/Orchard,cooclsee/Orchard,rtpHarry/Orchard,ehe888/Orchard,Fogolan/OrchardForWork,SouleDesigns/SouleDesigns.Orchard,huoxudong125/Orchard,dmitry-urenev/extended-orchard-cms-v10.1,TaiAivaras/Orchard,Ermesx/Orchard,infofromca/Orchard,SeyDutch/Airbrush,Praggie/Orchard,abhishekluv/Orchard,LaserSrl/Orchard,rtpHarry/Orchard,OrchardCMS/Orchard,patricmutwiri/Orchard,phillipsj/Orchard,ehe888/Orchard,hannan-azam/Orchard,rtpHarry/Orchard,Fogolan/OrchardForWork,omidnasri/Orchard,hannan-azam/Orchard,patricmutwiri/Orchard,jagraz/Orchard,harmony7/Orchard,escofieldnaxos/Orchard,oxwanawxo/Orchard,abhishekluv/Orchard,luchaoshuai/Orchard,xiaobudian/Orchard,xkproject/Orchard,planetClaire/Orchard-LETS,jerryshi2007/Orchard,jimasp/Orchard,Codinlab/Orchard,SeyDutch/Airbrush,Praggie/Orchard,johnnyqian/Orchard,jchenga/Orchard,kgacova/Orchard,vairam-svs/Orchard,Codinlab/Orchard,omidnasri/Orchard,dburriss/Orchard,sfmskywalker/Orchard,fortunearterial/Orchard,spraiin/Orchard,MetSystem/Orchard,openbizgit/Orchard,hbulzy/Orchard,Sylapse/Orchard.HttpAuthSample,OrchardCMS/Orchard,planetClaire/Orchard-LETS,kgacova/Orchard,alejandroaldana/Orchard,xkproject/Orchard,luchaoshuai/Orchard,AdvantageCS/Orchard,brownjordaninternational/OrchardCMS,sfmskywalker/Orchard,Serlead/Orchard,grapto/Orchard.CloudBust,RoyalVeterinaryCollege/Orchard,jerryshi2007/Orchard,fassetar/Orchard,jimasp/Orchard,Praggie/Orchard,jtkech/Orchard,sfmskywalker/Orchard-Off-The-Grid-Sample-Code,escofieldnaxos/Orchard,spraiin/Orchard,openbizgit/Orchard,jimasp/Orchard,MetSystem/Orchard,dmitry-urenev/extended-orchard-cms-v10.1,SzymonSel/Orchard,abhishekluv/Orchard,TalaveraTechnologySolutions/Orchard,DonnotRain/Orchard,RoyalVeterinaryCollege/Orchard,ehe888/Orchard,dozoft/Orchard,Sylapse/Orchard.HttpAuthSample,armanforghani/Orchard,kouweizhong/Orchard,omidnasri/Orchard,dcinzona/Orchard,neTp9c/Orchard,phillipsj/Orchard,OrchardCMS/Orchard,kouweizhong/Orchard,SouleDesigns/SouleDesigns.Orchard,fassetar/Orchard,harmony7/Orchard,escofieldnaxos/Orchard,aaronamm/Orchard,aaronamm/Orchard,Fogolan/OrchardForWork,SouleDesigns/SouleDesigns.Orchard,gcsuk/Orchard,bedegaming-aleksej/Orchard,emretiryaki/Orchard,grapto/Orchard.CloudBust,neTp9c/Orchard,brownjordaninternational/OrchardCMS,aaronamm/Orchard,luchaoshuai/Orchard,oxwanawxo/Orchard,dburriss/Orchard,SeyDutch/Airbrush,Ermesx/Orchard,SeyDutch/Airbrush,SzymonSel/Orchard,luchaoshuai/Orchard,RoyalVeterinaryCollege/Orchard,yonglehou/Orchard,AdvantageCS/Orchard,patricmutwiri/Orchard,dcinzona/Orchard,JRKelso/Orchard,Praggie/Orchard,jchenga/Orchard,aaronamm/Orchard,DonnotRain/Orchard,TalaveraTechnologySolutions/Orchard,gcsuk/Orchard,LaserSrl/Orchard,Serlead/Orchard,yonglehou/Orchard,Dolphinsimon/Orchard,SeyDutch/Airbrush,yersans/Orchard,Dolphinsimon/Orchard,xiaobudian/Orchard,qt1/Orchard,jersiovic/Orchard,tobydodds/folklife,tobydodds/folklife,spraiin/Orchard,dozoft/Orchard,alejandroaldana/Orchard,hbulzy/Orchard,rtpHarry/Orchard,jersiovic/Orchard,cooclsee/Orchard,enspiral-dev-academy/Orchard,dmitry-urenev/extended-orchard-cms-v10.1,gcsuk/Orchard,DonnotRain/Orchard,bedegaming-aleksej/Orchard,infofromca/Orchard,yersans/Orchard,Dolphinsimon/Orchard,jchenga/Orchard,Lombiq/Orchard,Dolphinsimon/Orchard,SouleDesigns/SouleDesigns.Orchard,OrchardCMS/Orchard,Ermesx/Orchard,armanforghani/Orchard,brownjordaninternational/OrchardCMS,brownjordaninternational/OrchardCMS,MetSystem/Orchard,dmitry-urenev/extended-orchard-cms-v10.1,oxwanawxo/Orchard,Lombiq/Orchard,jersiovic/Orchard,sfmskywalker/Orchard,mvarblow/Orchard,patricmutwiri/Orchard,hbulzy/Orchard,yonglehou/Orchard,gcsuk/Orchard,DonnotRain/Orchard,omidnasri/Orchard,planetClaire/Orchard-LETS,mvarblow/Orchard,li0803/Orchard,emretiryaki/Orchard,Codinlab/Orchard,jagraz/Orchard,Codinlab/Orchard,phillipsj/Orchard,huoxudong125/Orchard,jerryshi2007/Orchard,li0803/Orchard,jimasp/Orchard,kouweizhong/Orchard,jtkech/Orchard,TalaveraTechnologySolutions/Orchard,omidnasri/Orchard,rtpHarry/Orchard,escofieldnaxos/Orchard,Serlead/Orchard,emretiryaki/Orchard,ehe888/Orchard,ehe888/Orchard,sfmskywalker/Orchard,openbizgit/Orchard,dozoft/Orchard,alejandroaldana/Orchard,xkproject/Orchard,Sylapse/Orchard.HttpAuthSample,SzymonSel/Orchard,armanforghani/Orchard,sfmskywalker/Orchard,LaserSrl/Orchard,MetSystem/Orchard,xkproject/Orchard,johnnyqian/Orchard,dcinzona/Orchard,patricmutwiri/Orchard,Dolphinsimon/Orchard,enspiral-dev-academy/Orchard,qt1/Orchard,jerryshi2007/Orchard,LaserSrl/Orchard,JRKelso/Orchard,sfmskywalker/Orchard,omidnasri/Orchard,JRKelso/Orchard,xiaobudian/Orchard,emretiryaki/Orchard,harmony7/Orchard,Praggie/Orchard,mvarblow/Orchard,qt1/Orchard,tobydodds/folklife,openbizgit/Orchard,cooclsee/Orchard,phillipsj/Orchard,jchenga/Orchard,xiaobudian/Orchard,IDeliverable/Orchard,jagraz/Orchard,kgacova/Orchard,sfmskywalker/Orchard,neTp9c/Orchard,dcinzona/Orchard,Serlead/Orchard,tobydodds/folklife,huoxudong125/Orchard,fortunearterial/Orchard,spraiin/Orchard,yonglehou/Orchard,IDeliverable/Orchard,infofromca/Orchard,cooclsee/Orchard,johnnyqian/Orchard,johnnyqian/Orchard,alejandroaldana/Orchard