Scripting environment for the StoryTeller engine.

Controls: SPACE: pause / play video down : half the seek time up : double the seek time left : jump backwards the seek time right: jump forward the seek time c : clear the display f : fix current subtitles n : new subtitle s : save the current changes t : display time num 1: move fixed subtitle beginning backwards for the seek time num 3: move fixed subtitle beginning forward for the seek time num 4: move fixed subtitle end backwards for the seek time num 6: move fixed subtitle end forward for the seek time