Recursively merge provider arrays. Fixes #1166
Recursively merge provider arrays. Fixes #1166

wastemobile/Symphony2.3.6,NikoMostWanted/symphony-2,symphonycms/symphony-2,avanteweb/symphony-2,blaXXabla/projet_test_symphony,johnpuddephatt/symphony-2,DavidForster/symphony-2,bauhouse/Piano-Sonata,allen/auth.getsymphony.com,symphonycms/sym-getsymphony,mazedigital/jcilearn,jdsimcoe/symphony-boilerplate,bauhouse/sym-pears,ljonka/symphony-2,twiro/symphony-2,ljonka/symphony-2,jdsimcoe/symphony-boilerplate,brendo/symphony-2,brendo/symphony-2,avanteweb/symphony-2,NikoMostWanted/symphony-2,rzantolas/Symphony-Test,jdsimcoe/symphony-boilerplate,BloodBrother/symphony-2,jurajkapsz/symphony-2,astudio/remixhair,michael-e/symphony-2,mazedigital/jcilearn,blaXXabla/projet_test_symphony,rzantolas/Symphony-Test,jensscherbl/symphony,mazedigital/jcilearn,jurajkapsz/symphony-2,alexnantel88/symphony-2,jonmifsud/symphony-2,jdsimcoe/symphony-boilerplate,bauhouse/sym-todo-list,ayellowraven/projectplaten,roshinebagha/Symphony-Test,thebestsophist/personal-health-diary,roshinebagha/Symphony-Test,symphonycms/sym-getsymphony,jensscherbl/symphony,DavidForster/symphony-2,allen/auth.getsymphony.com,astudio/remixhair,thebestsophist/personal-health-diary,DeuxHuitHuit/symphony-2,ayellowraven/projectplaten,bauhouse/Piano-Sonata,alexnantel88/symphony-2,johnpuddephatt/symphony-2,jonmifsud/symphony-2,BloodBrother/symphony-2,DeuxHuitHuit/symphony-2,symphonycms/symphony-2,twiro/symphony-2,bauhouse/sym-todo-list,michael-e/symphony-2,bauhouse/sym-pears,wastemobile/Symphony2.3.6