Make FileAdmin.base_url optional.

Add a `FileAdmin.can_download` flag to enable download of uploaded files.
If `base_url` is not defined, a `.download` route will serve uploaded files.

Do not enforce github ribbon over http

Docs in readthedocs run over https and Chrome recognize the ribbon as unsafe content.

Remove inline_view from contrib/peewee/form.py, so as to fix #406 (cleaned up this time)

This reverts commit c424c3fe.

This reverts commit 749161e7.

This reverts commit deb60c15.

form fix

errrors replaced with errors

Old format fltN_M still works, but the new format flt_name_operation coexists side-by-side.

Fix compat for CPython/PyPy 2.x

Support both __builtins__ as a dictionary and a module.

Allow custom _id value type in mongoengine backend

Display foreign keys when explicitly instructed

__builtins__ should be accessed as a module, not a dict.

More examples