Allow local prebuilt stack sourcing
Allow local prebuilt stack sourcing

for faster installation (especially when testing) it's useful to just load a local .tgz file (exportend and compressed herokuish container)
codeconfab/dokku,codeconfab/dokku,expa/dokku,progrium/dokku,bobvanderlinden/dokku,AnselZhangGit/dokku,pmvieira/dokku,u2mejc/dokku,elia/dokku,dokku/dokku,codeconfab/dokku,AnselZhangGit/dokku,u2mejc/dokku,u2mejc/dokku,econya/dokku,Evlos/dokku,econya/dokku,sseemayer/dokku,claytonbrown/dokku,jimjag/dokku,Evlos/dokku,alexquick/dokku,AnselZhangGit/dokku,pmvieira/dokku,johnfraney/dokku,amaltson/dokku,u2mejc/dokku,claytonbrown/dokku,sseemayer/dokku,econya/dokku,fruitl00p/dokku,elia/dokku,elia/dokku,amaltson/dokku,Evlos/dokku,dokku/dokku,elia/dokku,amaltson/dokku,progrium/dokku,econya/dokku,alessio/dokku,jimjag/dokku,bobvanderlinden/dokku,u2mejc/dokku,bobvanderlinden/dokku,codeconfab/dokku,johnfraney/dokku,alexquick/dokku,jimjag/dokku,sseemayer/dokku,amaltson/dokku,claytonbrown/dokku,Evlos/dokku,expa/dokku,crisward/dokku,johnfraney/dokku,expa/dokku,alessio/dokku,amaltson/dokku,econya/dokku,jimjag/dokku,progrium/dokku,elia/dokku,Evlos/dokku,AnselZhangGit/dokku,claytonbrown/dokku,alexquick/dokku,sseemayer/dokku,amaltson/dokku,fruitl00p/dokku,econya/dokku,callahad/dokku,elia/dokku,expa/dokku,fruitl00p/dokku,elia/dokku,johnfraney/dokku,amaltson/dokku,alessio/dokku,alessio/dokku,alessio/dokku,johnfraney/dokku,johnfraney/dokku,alessio/dokku,amaltson/dokku,dokku/dokku,fruitl00p/dokku,callahad/dokku,crisward/dokku,claytonbrown/dokku,callahad/dokku,sseemayer/dokku,elia/dokku,bobvanderlinden/dokku,crisward/dokku,expa/dokku,jimjag/dokku,codeconfab/dokku,jimjag/dokku,bobvanderlinden/dokku,alexquick/dokku,econya/dokku,progrium/dokku,claytonbrown/dokku,dokku/dokku,pmvieira/dokku,progrium/dokku,dokku/dokku,u2mejc/dokku,alexquick/dokku,sseemayer/dokku,codeconfab/dokku,jimjag/dokku,crisward/dokku,alessio/dokku,johnfraney/dokku,claytonbrown/dokku,jimjag/dokku,AnselZhangGit/dokku,johnfraney/dokku,pmvieira/dokku,sseemayer/dokku,fruitl00p/dokku,callahad/dokku,callahad/dokku,alexquick/dokku,codeconfab/dokku,crisward/dokku,expa/dokku,codeconfab/dokku,progrium/dokku,sseemayer/dokku,Evlos/dokku,pmvieira/dokku,u2mejc/dokku,progrium/dokku,Evlos/dokku,progrium/dokku,crisward/dokku,dokku/dokku,econya/dokku,dokku/dokku,alexquick/dokku,AnselZhangGit/dokku,pmvieira/dokku,alessio/dokku,claytonbrown/dokku,alexquick/dokku,AnselZhangGit/dokku,crisward/dokku,AnselZhangGit/dokku,pmvieira/dokku,bobvanderlinden/dokku,callahad/dokku,crisward/dokku,bobvanderlinden/dokku,callahad/dokku,dokku/dokku,fruitl00p/dokku,callahad/dokku,fruitl00p/dokku,expa/dokku,expa/dokku,fruitl00p/dokku,bobvanderlinden/dokku,u2mejc/dokku,Evlos/dokku,pmvieira/dokku