Load ~dev files as well as main provider files for new v2 protocol, fixes #6415
Load ~dev files as well as main provider files for new v2 protocol, fixes #6415

floverdevel/composer,fabpot/composer,localheinz/composer,stof/composer,stefangr/composer,johnstevenson/composer,milleruk/composer,naderman/composer,nicolas-grekas/composer,alcohol/composer,composer/composer,pierredup/composer,staabm/composer