Don't map glyphs to certain problematic General Punctuation Unicode locations (bug 911034)

Fixes the remaining missing characters in https://bugzilla.mozilla.org/show_bug.cgi?id=911034.

For reference, see http://www.unicode.org/charts/PDF/U2000.pdf (and also http://en.wikipedia.org/wiki/General_Punctuation_%28Unicode_block%29).

test/pdfs/.gitignore

@@ -30,6 +30,7 @@
 !bug847420.pdf
 !bug860632.pdf
 !bug894572.pdf
+!bug911034.pdf
 !bug1108301.pdf
 !pdfjsbad1586.pdf
 !freeculture.pdf

test/test_manifest.json

@@ -52,6 +52,13 @@
        "type": "eq",
        "about": "Fonts referenced only by name and not by an object identifier."
     },
+    {  "id": "bug911034",
+       "file": "pdfs/bug911034.pdf",
+       "md5": "54ee432a4e16b26b242fbf549cdad177",
+       "rounds": 1,
+       "link": false,
+       "type": "eq"
+    },
     {  "id": "bug921760",
        "file": "pdfs/bug921760.pdf",
        "md5": "1aa136d786a65b0d7cce7bdb3c58c6c3",