Merge pull request grafov#4 from Makombo/patch-2

Export count of mediaplaylist segments

Fix grafov#7 EXT-X-DISCONTINUITY parsing error

It also apply to EXT-X-PROGRAM-DATE-TIME parsing.
Unit tests updated.

Update docs

Update docs to version 7 of the protocol

Merge pull request grafov#13 from kz26/master

Fix EXT-X-PLAYLIST-TYPE parsing

Merge branch 'draft' of github.com:grafov/m3u8 into draft

Removed uneccessary verbosity in tests. Output of tests uses now func…

…tions from 'testing' not 'fmt'. Docs prepared for release 0.2.

Stable enough. First release.