Removing status field type.

I was wrong - we don't need this. But I will put it up on Github for those that do.
Migration to convert blog to streams.
Updating blog module to use streams.
Adding "Custom Fields" to global lang.

#translate
Allowing overriding of updated and created columns.
Fixing stream fields list issue.
Fixing wrong override in blog edit.
Updating image field type.

Fixes 'dummy' bug.
Fixing issue with install failing over existing install.

Was in blog module.
Custom fields tab for blog post form.
Don't truncate the blog posts.
Allow page type description to be null.
Fixing null issue with page type description.