Drop dependency on plone.i18n in favor of nti.i18n.

[jamadden]

No description provided.

[jamadden]

The simplest transition is to be sure that plone.i18n is simply not installed and cut over to importing the new interface classes. The next simplest transition, or an intermediate step, is just to be sure that it's not being configured yet continue using the old classes---they'll get the new implementation thanks to inheritance.

If anybody is still configuring plone.i18n after this is merged, then we would be working with two different data sets if we used both interfaces. The only reason I can think of to do that would be to get access to all of the flag resources; I don't think we use those in our app, although we could with a little bit of glue code if we wanted to.

[jamadden]

1.3.0 is on PyPI.

[papachoco]

Awesome