Resolve Closure Arguments
Allow a string instead of an array in the Config for simple mappings.
Update README with new string instead of array.
Also allow closures in mappings.
Merge conflicts (Buttons)
Slight syntax changes to match my style :-)
Changed class definition to match closure definitions when resolving args. See PR #21
Merge branch 'simple-config-mapping' of github.com:dhrrgn/di into dhrrgn-simple-config-mapping
Added 'definition' key to proxy to 'class' when using config