Make Jmol/JSmol work in notebook

This requires installation of the Jmol/JSmol package in
SAGE_ROOT/local/shared/jsmol.
French translation
Merge pull request #201 from fchapoton/master

French translation
Merge branch 'master' of https://github.com/sagemath/sagenb
Tweaks to Jmol/JSmol

Tweaks to Jmol/JSmol in notebook.  Pure javascript 3-D interactive plots
with option to load live or static. Have removed user interface bells
and whistles temporarily.