fix FRAGMENT_PLAYING not being fired for first fragment after seek
fix FRAGMENT_PLAYING not being fired for first fragment after seek

aevange/flashls,fixedmachine/flashls,JulianPena/flashls,tedconf/flashls,NicolasSiver/flashls,Boxie5/flashls,Corey600/flashls,vidible/vdb-flashls,JulianPena/flashls,neilrackett/flashls,aevange/flashls,suuhas/flashls,Peer5/flashls,Corey600/flashls,hola/flashls,thdtjsdn/flashls,vidible/vdb-flashls,hola/flashls,aevange/flashls,clappr/flashls,suuhas/flashls,loungelogic/flashls,suuhas/flashls,NicolasSiver/flashls,dighan/flashls,loungelogic/flashls,dighan/flashls,codex-corp/flashls,thdtjsdn/flashls,Boxie5/flashls,neilrackett/flashls,jlacivita/flashls,tedconf/flashls,codex-corp/flashls,fixedmachine/flashls,mangui/flashls,jlacivita/flashls,mangui/flashls,Peer5/flashls,clappr/flashls,aevange/flashls,Peer5/flashls,Peer5/flashls,suuhas/flashls