Get rid of zope.app.zapi
AFAIK current coding style practices in Zope3 are against the use of zope.app.zapi package. Instead it is recommended to use the packages that zope.app.zapi wrapps, directly.
The purpose of this bug report is to provide a place where I can attach patches (since I'm not a commiter) for every zope.app.* package that use zope.app.zapi so we can get rid of it.
If you think adding so many patches to one bug report is a little bit overkill, please let me know another way of doing so and I'll be happy to do it.