fix jw6 sample setup
report BufferPercent in test page
move playlists to another folder
fix https://github.com/mangui/HLSprovider/issues/24
video-only playlists were not working properly
fix https://github.com/mangui/HLSprovider/issues/21
keep PTS value foe each Fragment, and reevaluate Fragment duration when start PTS of two consecutive fragments is known
this avoids rounding error affecting the playback position, which in the long run will offset the captions.
remove Video object from HLS  and Buffer Classes, replace by NetStream
One of the reasons: we can use audio only streams and don't need Video at all

https://github.com/mangui/HLSprovider/pull/23
part 1
fix some state switching
seek in "paused" state should not switch to "playing" after seek complete
we don't need "buffering" state right before "idle"

https://github.com/mangui/HLSprovider/pull/23
part 2
add comments
filter AVC NAL unit with type=0 (unspecified)
this fix some issues with particular streams
enhance TS parsing
if PMT not at the beginning of the fragment and some AV packets were left before, rewind and parse those AV packets.
this should help parsing bad segmented files
accurate seeking

when seeking,filter out audio tags with PTS smaller than seek PTS (dont append them to NetStream)
for video tags, set PTS=seek PTS if PTS < seek PTS

https://github.com/mangui/HLSprovider/pull/23
part 3
choose fragment nearest to position or pts with less start_pts