Fade transition: Reset transition property before applying animation

Related to #5892
Merge pull request #5942 from pjackson28/addtransitionreset

Fade transition: Reset transition property before applying animation
Multimedia player: Translated documentation into French
Merge pull request #5943 from crichard/translatemultimediadocs

Multimedia player: Translated documentation into French
Fixed Linux issues with development environment setup script
Merge pull request #5946 from joshdevries/setup-script

Fixed Linux issues with development environment setup script
Fade transition: Reset transition property before applying animation

Related to #5892
Fixed Linux issues with development environment setup script
Multimedia player: Translated documentation into French