Prepare for plugin ext sort
Setup ext sort function
Make ext events private
unoptimized plugin dependency sorting algo
Merge pull request #660 from thegoleffect/feature/ext

unoptimized plugin dependency sorting algo
merge
Minor refactor
Minor refactor
Minor refactor
Minor refactor
Minor refactor
Add tests
fix ext plugin sort to account for out of order priority definitions
Merge pull request #661 from thegoleffect/feature/ext

fix ext plugin sort to account for out of order priority definitions
uncommenting line
tests and error
Merge pull request #662 from spumko/feature/ext

Plugin deps