Clean up test PDF references

test/pdfs/f1040.pdf.link

@@ -1 +1 @@
-http://www.irs.gov/pub/irs-pdf/f1040.pdf
+http://web.archive.org/web/20110918100215/http://www.irs.gov/pub/irs-pdf/f1040.pdf

test/pdfs/gesamt.pdf.link

@@ -1 +1 @@
-http://www.gesetze-im-internet.de/bundesrecht/bgb/gesamt.pdf
+http://web.archive.org/web/20130308055056/http://www.gesetze-im-internet.de/bundesrecht/bgb/gesamt.pdf

test/pdfs/i9.pdf.link

@@ -1 +1 @@
-http://www.uscis.gov/files/form/i-9.pdf
+http://web.archive.org/web/20110709064959/http://www.uscis.gov/files/form/i-9.pdf

test/pdfs/ibwa-bad.pdf.link

@@ -1 +1 @@
-http://www.bottledwater.org/public/pdf/IBWA05ModelCode_Mar2.pdf
+http://web.archive.org/web/20070317213312/http://www.bottledwater.org/public/pdf/IBWA05ModelCode_Mar2.pdf

test/pdfs/issue1243.pdf.link

@@ -1 +1 @@
-http://www.nsa.gov/public_info/_files/nash_letters/nash_letters1.pdf
+http://web.archive.org/web/20120219190422/http://www.nsa.gov/public_info/_files/nash_letters/nash_letters1.pdf

test/pdfs/issue2984.pdf.link

@@ -1,2 +1 @@
-http://computation.llnl.gov/casc/sapphire/pubs/denoising.pdf
-
+http://web.archive.org/web/20130220170211/https://computation.llnl.gov/casc/sapphire/pubs/denoising.pdf

test/pdfs/shavian.pdf.link

@@ -1 +1 @@
-http://www.unicode.org/charts/PDF/U10450.pdf
+http://web.archive.org/web/20110629043247/http://www.unicode.org/charts/PDF/U10450.pdf

test/pdfs/wdsg_fitc.pdf.link

@@ -1 +1 @@
-http://www.airgid.com/wp-content/uploads/2012/06/wdsg_fitc.pdf
+http://web.archive.org/web/20120617043413/http://www.airgid.com/wp-content/uploads/2012/06/wdsg_fitc.pdf

test/pdfs/wnv_chinese.pdf.link

@@ -1 +1 @@
-http://www.cdc.gov/ncidod/dvbid/westnile/languages/chinese.pdf
+http://web.archive.org/web/20130123034858/http://www.cdc.gov/ncidod/dvbid/westnile/languages/chinese.pdf

test/test_manifest.json

@@ -105,7 +105,7 @@
     },
     {  "id": "intelisa-eq",
        "file": "pdfs/intelisa.pdf",
-       "md5": "cdbcf14d0d260c0b313c566a61b07d9f",
+       "md5": "24643ebe348a568cfe6a532055c71493",
        "link": true,
        "lastPage": 100,
        "rounds": 1,
@@ -121,7 +121,7 @@
     },
     {  "id": "german-umlaut",
        "file": "pdfs/german-umlaut.pdf",
-       "md5": "8710a9ce0866e30d36d202c6cc2262bd",
+       "md5": "fb4948876f5ff57847f94192aa3df211",
        "link": true,
        "lastPage": 1,
        "rounds": 1,
@@ -153,7 +153,7 @@
     },
     {  "id": "shavian-load",
        "file": "pdfs/shavian.pdf",
-       "md5": "40ef97a120250b149c4ded383ca328ec",
+       "md5": "4fabf0a03e82693007435020bc446f9b",
        "link": true,
        "rounds": 1,
        "type": "load"
@@ -363,7 +363,7 @@
     },
     {  "id": "f1040",
        "file": "pdfs/f1040.pdf",
-       "md5": "b59272ce19b4a0c5808c8861441b0741",
+       "md5": "7323b50c6d28d959b8b4b92c469b2469",
        "link": true,
        "rounds": 1,
        "type": "load"
@@ -1162,7 +1162,7 @@
     },
     {  "id": "gesamt",
       "file": "pdfs/gesamt.pdf",
-      "md5": "f9148b71aad9a7856f70f303d7e78703",
+      "md5": "743aaa6f46ed0a42864f079d632d942e",
       "rounds": 1,
       "link": true,
       "lastPage": 1,
@@ -1272,7 +1272,7 @@
     },
     {  "id": "issue2984",
       "file": "pdfs/issue2984.pdf",
-      "md5": "d41d8cd98f00b204e9800998ecf8427e",
+      "md5": "a8e81e7b7c6d8b0ec26bbfee9954f110",
       "rounds": 1,
       "link": true,
       "type": "eq",