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

test/data/expected/path_normalization_test.html.html.txt

Index: test/data/expected/path_normalization_test.html.html.txt
diff --git a/test/data/expected/path_normalization_test.html.html.txt b/test/data/expected/path_normalization_test.html.html.txt
deleted file mode 100644
index 2c340435e7cbdfbab7770f616114856a2702e6fc..0000000000000000000000000000000000000000
--- a/test/data/expected/path_normalization_test.html.html.txt
+++ /dev/null
@@ -1,26 +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 117x19
-        text run at (0,0) width 117: "expect 'hello hello': "
-      RenderInline {X-COMPONENT-A} at (0,0) size 32x19
-        RenderText {#text} at (0,0) size 0x0
-        RenderInline {X-COMPONENT-B} at (0,0) size 32x19
-          RenderText {#text} at (0,0) size 0x0
-          RenderInline {SPAN} at (0,0) size 28x19
-            RenderText {#text} at (117,0) size 28x19
-              text run at (117,0) width 28: "hello"
-          RenderText {#text} at (145,0) size 4x19
-            text run at (145,0) width 4: " "
-        RenderText {#text} at (0,0) size 0x0
-      RenderText {#text} at (0,0) size 0x0
-      RenderInline {SPAN} at (0,0) size 28x19
-        RenderText {#text} at (149,0) size 28x19
-          text run at (149,0) width 28: "hello"
-      RenderText {#text} at (0,0) size 0x0
-#EOF