player: add methods to return current time and duration (closes #263)
player: add methods to return current time and duration (closes #263)

jfairley/clappr,tarkanlar/clappr,jfairley/clappr,tarkanlar/clappr,burakkp/clappr,Metrakit/clappr,clappr/clappr,clappr/clappr,wxmfront/clappr,kelonye/clappr,MariadeAnton/clappr,tarkanlar/clappr,leandromoreira/clappr,jfairley/clappr,flavioribeiro/clappr,leandromoreira/clappr,leandromoreira/clappr,kelonye/clappr,Peer5/clappr,clappr/clappr,tjenkinson/clappr,Peer5/clappr,Pyrotoxin/clappr,flavioribeiro/clappr,dayvson/clappr,wxmfront/clappr,irongomme/clappr,shakin/clappr,tjenkinson/clappr,dayvson/clappr,tjenkinson/clappr,shakin/clappr,Metrakit/clappr,shakin/clappr,irongomme/clappr,burakkp/clappr,wxmfront/clappr,Metrakit/clappr,MariadeAnton/clappr,MariadeAnton/clappr,burakkp/clappr,dayvson/clappr,kelonye/clappr,Peer5/clappr,Pyrotoxin/clappr,flavioribeiro/clappr,irongomme/clappr,Pyrotoxin/clappr