Fix filters for mongoengine, peewee and pymongo

`ModelView.get_list()`

add 'in list' and 'empty' filters, allow changing to filters with options, add js versions, fix bootstrap3+select

fix backwards compatibility issues with new filters by not requiring 'select2' data_type for filters with options

use select2-bootstrap-css

add 'in list' and 'empty' filters, allow changing to filters with opts, add versions to js filenames

fix between filters

Added geoa contrib module for Geoalchemy2 integration

Still needs docs and tests

Sorting by modified date

add basic tests for modelview localization, fix issue #692

fix issue #369 by changing 'Model' to 'Record'

Add date/datetime/time range filters for SQLAlchemy, combine active/new filter generation logic

Support callable base_path in FileUploadField

add date/datetime/time range filters, add filter tests, combine jinja2 logic for active filters (from models/layout.html) with filters.js

Upgrade moment.js to 2.8.4

Upgrade select2 to 3.5.2

Upgrade jQuery to 2.1.1

sqla: respect required validator on relations

Fix Time/DateTime Equals Filters For SQLAlchemy+SQLite