* fixed and wrote test for lambda and function as arg case

* added license to userlib tests
* added map impl to userlib
* userlib tests now run and pass
* all args are evaluated individually

src/eval.rs

@@ -51,6 +51,8 @@ pub fn eval(ast: &Seg, syms: &mut SymTable) -> Result<Box<Ctr>, String> {
                 }
             },
 
+            Ctr::Lambda(ref l) => return Ok(call_lambda(l, arg_cdr, syms)?.clone()),
+
             Ctr::Symbol(ref tok) => {
                 let outer_scope_seg_holder: Seg;
                 let args: &Seg;