Fix for issue #111

Update Apparmor config on source server to allow GPG to lock the keyring.
detection of JS warning and docs
Advise users to disable javascript. Closes #101.
Fixing indentation broadly.  Using two space javascript after
re-investigating here
http://atroche.org/post/30994290348/javascript-indentation
Fixing some wording
adding library: gritter
Including gritter libraries and css on index page
Overriding gritter css
Using gritter in warning for javascript