Fix keyboard controls.
Fix keyboard controls.

quentinyang/pannellum,mpetroff/pannellum,riuson/pannellum,riuson/pannellum,riuson/pannellum,mpetroff/pannellum,psteph801/psteph801.github.io,quentinyang/pannellum,quentinyang/pannellum,psteph801/psteph801.github.io,psteph801/psteph801.github.io,psteph801/psteph801.github.io,riuson/pannellum,mpetroff/pannellum,mpetroff/pannellum,quentinyang/pannellum