Fixes #163 - small fix in the mangling logic, renames all expected test files

test/data/expected/list3_test.html.html.txt

Index: test/data/expected/list3_test.html.html.txt
diff --git a/test/data/expected/list3_test.html.html.txt b/test/data/expected/list3_test.html.html.txt
deleted file mode 100644
index 61698126bb8106601b3136d459408bf6ff80a741..0000000000000000000000000000000000000000
--- a/test/data/expected/list3_test.html.html.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Blocked access to external URL http://dart.googlecode.com/svn/branches/bleeding_edge/dart/client/dart.js
-Blocked access to external URL http://dart.googlecode.com/svn/branches/bleeding_edge/dart/client/dart.js
-Content-Type: text/plain
-layer at (0,0) size 800x600
-  RenderView at (0,0) size 800x600
-layer at (0,0) size 800x36
-  RenderBlock {HTML} at (0,0) size 800x36
-    RenderBody {BODY} at (8,8) size 784x20
-      RenderText {#text} at (0,0) size 192x19
-        text run at (0,0) width 192: "expect: (-a-) (-?-) (-c-), actual: "
-      RenderText {#text} at (192,0) size 11x19
-        text run at (192,0) width 11: "(-"
-      RenderText {#text} at (203,0) size 7x19
-        text run at (203,0) width 7: "a"
-      RenderText {#text} at (210,0) size 15x19
-        text run at (210,0) width 15: "-) "
-      RenderText {#text} at (225,0) size 11x19
-        text run at (225,0) width 11: "(-"
-      RenderText {#text} at (236,0) size 7x19
-        text run at (236,0) width 7: "?"
-      RenderText {#text} at (243,0) size 15x19
-        text run at (243,0) width 15: "-) "
-      RenderText {#text} at (258,0) size 11x19
-        text run at (258,0) width 11: "(-"
-      RenderText {#text} at (269,0) size 7x19
-        text run at (269,0) width 7: "c"
-      RenderText {#text} at (276,0) size 11x19
-        text run at (276,0) width 11: "-)"
-      RenderText {#text} at (0,0) size 0x0
-#EOF