chicken: fixes for chicken 5.1.0

- fix incorrect binaryVersion
- upgrade chicken-5 eggs
- fix repository path

pkgs/development/compilers/chicken/5/eggs.nix

@@ -1,4 +1,4 @@
-{ pkgs }:
+{ pkgs, stdenv }:
 rec {
   inherit (pkgs) eggDerivation fetchegg;
 
@@ -33,12 +33,12 @@ rec {
   };
 
   srfi-1 = eggDerivation {
-    name = "srfi-1-0.5";
+    name = "srfi-1-0.5.1";
 
     src = fetchegg {
       name = "srfi-1";
-      version = "0.5";
-      sha256 = "0gh1h406xbxwm5gvc5znc93nxp9xjbhyqf7zzga08k5y6igxrlvk";
+      version = "0.5.1";
+      sha256 = "15x0ajdkw5gb3vgs8flzh5g0pzl3wmcpf11iimlm67mw6fxc8p7j";
     };
 
     buildInputs = [
@@ -47,12 +47,12 @@ rec {
   };
 
   srfi-13 = eggDerivation {
-    name = "srfi-13-0.2";
+    name = "srfi-13-0.2.1";
 
     src = fetchegg {
       name = "srfi-13";
-      version = "0.2";
-      sha256 = "0jazbdnn9bjm7wwxqq7xzqxc9zfvaapq565rf1czj6ayl96yvk3n";
+      version = "0.2.1";
+      sha256 = "0204i7fhc4dy0l89lbi2lv9cjndrvwyrk68z3wy7x445jb4ky1gq";
     };
 
     buildInputs = [
@@ -61,12 +61,12 @@ rec {
   };
 
   srfi-14 = eggDerivation {
-    name = "srfi-14-0.2";
+    name = "srfi-14-0.2.1";
 
     src = fetchegg {
       name = "srfi-14";
-      version = "0.2";
-      sha256 = "13nm4nn1d52nkvhjizy26z3s6q41x1ml4zm847xzf86x1zwvymni";
+      version = "0.2.1";
+      sha256 = "0gc33cx4xll9vsf7fm8jvn3gc0604kn3bbi6jfn6xscqp86kqb9p";
     };
 
     buildInputs = [