Only notify fractionChanged when it actually changes ... 
Only notify fractionChanged when it actually changes ... 

git-svn-id: ab66a9de07fa9d47c5829c82992f5279466c775f@3455 63c20433-aa62-49bd-875c-5a186b69a8fb

ARSekkat/gpac,rbouqueau/gpac,psteinb/gpac,ARSekkat/gpac,emmanouil/gpac,emmanouil/gpac,rbouqueau/gpac_brew_travis,drakeguan/gpac,Bevara/Access-open,porcelijn/gpac,Bevara/Access-open,canatella/gpac,ARSekkat/gpac,DmitrySigaev/gpac,rauf/gpac,rauf/gpac,gpac/gpac,DmitrySigaev/gpac,DmitrySigaev/gpac,DmitrySigaev/gpac,epam/gpac,nguyen-viet-thanh-trung/gpac,nguyen-viet-thanh-trung/gpac,rbouqueau/gpac,DmitrySigaev/gpac,gpac/gpac,RodolpheFouquet/gpac,psteinb/gpac,canatella/gpac,aymanelyaagoubi/gpac,ARSekkat/gpac,gpac/gpac,drakeguan/gpac,RodolpheFouquet/gpac,gpac/gpac,porcelijn/gpac,Bevara/Access-open,psteinb/gpac,drakeguan/gpac,RodolpheFouquet/gpac,canatella/gpac,aymanelyaagoubi/gpac,rbouqueau/gpac,epam/gpac,rauf/gpac,porcelijn/gpac,gpac/gpac,gpac/gpac,vladimir-kazakov/gpac,canatella/gpac,drakeguan/gpac,canatella/gpac,rauf/gpac,porcelijn/gpac,aymanelyaagoubi/gpac,epam/gpac,aymanelyaagoubi/gpac,RodolpheFouquet/gpac,rbouqueau/gpac_brew_travis,drakeguan/gpac,emmanouil/gpac,rauf/gpac,RodolpheFouquet/gpac,emmanouil/gpac,psteinb/gpac,emmanouil/gpac,epam/gpac,rauf/gpac,canatella/gpac,rbouqueau/gpac,RodolpheFouquet/gpac,rbouqueau/gpac,rbouqueau/gpac,porcelijn/gpac,DmitrySigaev/gpac,vladimir-kazakov/gpac,rbouqueau/gpac_brew_travis,nguyen-viet-thanh-trung/gpac,psteinb/gpac,vladimir-kazakov/gpac,epam/gpac,Bevara/Access-open,ARSekkat/gpac,rbouqueau/gpac_brew_travis,nguyen-viet-thanh-trung/gpac,ARSekkat/gpac,epam/gpac,gpac/gpac,psteinb/gpac,drakeguan/gpac,aymanelyaagoubi/gpac,Bevara/Access-open,rbouqueau/gpac,canatella/gpac,vladimir-kazakov/gpac,nguyen-viet-thanh-trung/gpac,Bevara/Access-open,gpac/gpac,rbouqueau/gpac,nguyen-viet-thanh-trung/gpac,porcelijn/gpac,rbouqueau/gpac_brew_travis,aymanelyaagoubi/gpac,vladimir-kazakov/gpac,vladimir-kazakov/gpac,emmanouil/gpac,rbouqueau/gpac_brew_travis