context menus
Merge remote-tracking branch 'origin/master' into context_menus
Merge remote-tracking branch 'origin/context_menus' into context_menus
beginnings of context menu
Merge remote-tracking branch 'origin/context_menus' into context_menus
changed onRequest to onMessage and sendRequest to sendMessage.
removed extraneous comments.

Code is deprecated.  Chrome includes speak in context menus.
Merge pull request #2 from blendax78/context_menus

Context menus