Fixing so that it will work with Peewee 3.0's changed Model class and ForeignKeyField pieces.

Updating views.py to support changes in Peewee version 3.0 (for Fields the model_class attribute has changed to model). Previous versions of Peewee should work because of the try: except: loop I put in to first try model_class then on AttributeError try model.

Confusing...

Use table name rather than model name to construct filter query in QueryAjaxModelLoader

Drop support for python 2.6

Fixed x-editable does not show completely in bootstrap's responsive table

Use select2 in editable columns

Change fields.py to be compatible with SQLAlchemy>=1.2

returns peewee sorted columns list by default

refs #1536 fixed pk validate in InlineModelFormList

Use LEFT OUTER JOIN instead of INNER JOIN when searching rows

Use in scaffold_*_columns methods

Add support for postgres CITEXT type

citext is a case-insensitive character string type.
See https://www.postgresql.org/docs/current/static/citext.html

rediscli: prevent form submit when execute command

allow to use inherited form CharField or TextField fields for searching

clean() data in filters during get_list for pymongo