Split special keys as 'keys' for __depends__ and __refines__, and 'specials' for the others. Specials are only avoided in pairs iteration.
Split special keys as 'keys' for __depends__ and __refines__, and 'specials' for the others. Specials are only avoided in pairs iteration.

saucisson/lua-layeredata,cosyverif/layeredata,saucisson/layeredata