Remove Function.insert
-- simplify
-- whitespace
Remove Function.remove
-- whitespace
Rename Function#chain to Function#compose.

Reverse order in which functions are invoked
Return function with length 1 from compose
Function with preset length generator
Be generic
Improve Function#copy
Improve Function#curry
Assure correct length in Function#curry results
-- whitespace
Rename Function#match to Function#spread
-- whitespace
Return same function if length doesn't differ
Assure correct length in Function#not
Assure correct length in Function#partial
Remove Function#silent
Remove Function#wrap