Update docs to version 7 of the protocol

M3U8.md

@@ -29,6 +29,7 @@ Legend for playlist types:
 | EXT-X-MEDIA-SEQUENCE | MED | 1 | 0.1 |
 | EXT-X-PLAYLIST-TYPE | MED | 3 | 0.2 |
 | EXT-X-PROGRAM-DATE-TIME | MED | 1 | 0.2 |
+| EXT-X-SESSION-DATA | MAS | 7 |  |
 | EXT-X-START | MAS | 6 |  |
 | EXT-X-STREAM-INF | MAS | 1 | 0.1 |
 | EXT-X-TARGETDURATION | MED | 1 | 0.1 |
@@ -56,6 +57,7 @@ Legend for playlist types:
 | EXT-X-MEDIA-SEQUENCE         | MED        | 1          | 0.1      |
 | EXT-X-PLAYLIST-TYPE          | MED        | 3          | 0.2      |
 | EXT-X-PROGRAM-DATE-TIME      | MED        | 1          | 0.2      |
+| EXT-X-SESSION-DATA           | MAS        | 7          |          |
 | EXT-X-START                  | MAS        | 6          |          |
 | EXT-X-STREAM-INF             | MAS        | 1          | 0.1      |
 | EXT-X-TARGETDURATION         | MED        | 1          | 0.1      |
@@ -68,7 +70,7 @@ Legend for playlist types:
 IETF drafts notes
 -----------------
 
-[IETF](http://ietf.org) document currently in Draft status. Different versions of the document introduce changes of HLS protocol playlist formats. Last version of the HLS protocol is version 6.
+[IETF](http://ietf.org) document currently in Draft status. Different versions of the document introduce changes of HLS protocol playlist formats. Latest version of the HLS protocol is version 7.
 
 http://tools.ietf.org/html/draft-pantos-http-live-streaming
 
@@ -78,3 +80,4 @@ http://tools.ietf.org/html/draft-pantos-http-live-streaming
 * Version 4 of the HLS protocol described in draft07-draft08.
 * Version 5 of the HLS protocol described in draft09-draft11.
 * Version 6 of the HLS protocol described in draft12-draft13.
+* Version 7 of the HLS protocol described in draft14.