Convert BLIP.fm to use the Status Code detection method. The site gives a clean 404 error. Add to tests.

data.json

@@ -43,8 +43,7 @@
     "urlMain": "https://ask.fm/"
   },
   "BLIP.fm": {
-    "errorMsg": "Page Not Found",
-    "errorType": "message",
+    "errorType": "status_code",
     "rank": 261919,
     "url": "https://blip.fm/{}",
     "urlMain": "https://blip.fm/"

tests/all.py

@@ -158,7 +158,8 @@ class SherlockSiteCoverageTests(SherlockBaseTest):
         """
 
         self.username_check(['noonewouldeverusethis7'],
-                            ["Academia.edu", "9GAG", "About.me", "AngelList"
+                            ["Academia.edu", "9GAG", "About.me", "AngelList",
+                             "BLIP.fm"
                             ],
                             exist_check=False
                            )
@@ -180,7 +181,8 @@ class SherlockSiteCoverageTests(SherlockBaseTest):
         """
 
         self.username_check(['blue'],
-                            ["Academia.edu", "9GAG", "About.me", "AngelList"
+                            ["Academia.edu", "9GAG", "About.me", "AngelList",
+                             "BLIP.fm"
                             ],
                             exist_check=True
                            )