make more tests green

tests/manyloc/keineschweine/dependencies/nake/nakefile.nim

@@ -7,7 +7,7 @@ task "install", "compile and install nake binary":
     for index, dir in pairs(path):
       echo "  ", index, ". ", dir
     echo "Where to install nake binary? (quit with ^C or quit or exit)"
-    let ans = stdin.readLine().toLower
+    let ans = stdin.readLine().toLowerAscii
     var index = 0
     case ans
     of "q", "quit", "x", "exit":

tests/manyloc/keineschweine/lib/sg_assets.nim

@@ -562,7 +562,7 @@ proc importItem(data: PJsonNode; errors: var seq[string]): PItemRecord =
 
   result.useSound = importSound(data[2], errors, "useSound")
 
-  case data[1].str.toLower
+  case data[1].str.toLowerAscii
   of "projectile":
     result.kind = Projectile
     if data[2]["bullet"].kind == JString: