Build 492 translation

[xlv600]

Hi BST! :D

As usually I tried to make a french translation out of the English.lng.

New items since Build 488 are:
#158# "Jump forward"
#159# "Jump backward"
#589# "Seconds to jump"
$589$ "How many seconds to seek forward/backward (for Jump forward/backward option)"
#590# "Directory for captured images"
$590$ ""
#591# "Close file when finished"
$591$ "Close file when finished"
Close movie
Jump forward
Jump backward
Select chapter
Cycle video streams

:roll: -> But translation of #589#, $589$,#591#, $591$ make no change.
:roll: -> No ID found for the Process priority string, nor for the list box items.
:roll: -> If $590$ is left unchanged, the string $589$ is displaied instead.