Adding an option to enable/disable SSL observatory warnings about revoked certs (enabled by default)
Fixing a typo and putting the English strings for the cert warning option in all the locales
Add some strings that we really ought to be using

(even though we aren't using them now)

In preparation for a Chrome translation push
Merge pull request #278 from jgillula/bad-cert-warnings

Adding an option to enable/disable SSL obs revoked cert warnings
Merge pull request #283 from EFForg/chrometrans

Add some strings that we really ought to be using