Trim attribute list key-value pairs

It's not valid according to the spec, but bipbop has whitespace after the commas in its key-value pair lists. Strip leading and trailing whitespace before splitting the key and value when parsing now. Update one of the manifests to use the bad format. Add differentiated media playlists.

@@ -16,6 +16,8 @@
         attr;
       while (i--) {
         attr = attrs[i].split('=');
+        attr[0] = attr[0].replace(/^\s+|\s+$/g, '');
+        attr[1] = attr[1].replace(/^\s+|\s+$/g, '');
         result[attr[0]] = attr[1];
       }
       return result;

@@ -16,7 +16,7 @@
       "PROGRAM-ID": 1,
       "BANDWIDTH": 40000
     },
-    "uri": "media.m3u8"
+    "uri": "media1.m3u8"
   }, {
     "attributes": {
       "PROGRAM-ID": 1,
@@ -26,7 +26,7 @@
         "height": 224
       }
     },
-    "uri": "media.m3u8"
+    "uri": "media2.m3u8"
   }, {
     "attributes": {
       "PROGRAM-ID": 1,
@@ -36,6 +36,6 @@
         "height": 540
       }
     },
-    "uri": "media.m3u8"
+    "uri": "media3.m3u8"
   }]
 }

@@ -2,9 +2,9 @@
 #EXTM3U
 #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=240000,RESOLUTION=396x224
 media.m3u8
-#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=40000
-media.m3u8
+#EXT-X-STREAM-INF:PROGRAM-ID=1, BANDWIDTH=40000
+media1.m3u8
 #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=440000,RESOLUTION=396x224
-media.m3u8
+media2.m3u8
 #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1928000,RESOLUTION=960x540
-media.m3u8
+media3.m3u8

+#EXTM3U
+#EXT-X-PLAYLIST-TYPE:VOD
+#EXT-X-TARGETDURATION:10
+#EXTINF:10,
+00001.ts
+#EXTINF:10,
+00002.ts
+#EXTINF:10,
+00003.ts
+#EXTINF:10,
+00004.ts
+#ZEN-TOTAL-DURATION:57.9911
+#EXT-X-ENDLIST

+#EXTM3U
+#EXT-X-PLAYLIST-TYPE:VOD
+#EXT-X-TARGETDURATION:10
+#EXTINF:10,
+00001.ts
+#EXTINF:10,
+00002.ts
+#EXTINF:10,
+00003.ts
+#EXTINF:10,
+00004.ts
+#ZEN-TOTAL-DURATION:57.9911
+#EXT-X-ENDLIST