Adds Leaflet Search to Map

Adds leaflet search to maps

Examples

Merge branch 'upstream-edit-after-create' of https://github.com/Code4SA/flask-admin into Code4SA-upstream-edit-after-create

Make 'contains' the default string filter operator

Update filters.py

[fix] ListField validation

missed a comma, sorry

add trove classifiers to setup.py

will make it so https://caniusepython3.com stops showing this as a blocker

based on the versions currently tested in Travis

FileUploadInput fix

Added after_model_delete hook on view classes like after_model_change

If you edit a model where file field is required you will get a validation error if file field is set but wasn't changed.
You should pass filename in form data if it is already set.

fix mapbox-v4

Fix “object has no attribute 'message’” in py3

There are some programmers using unicode strings by default in Python 2 (from __future__ import unicode_literals). In that case "str.lower" raises TypeError (str type is expected, unicode given). This propose fixed mentioned issue.

Fixed some other references form mrjoes (user) to flask-admin (org)

Add missing .mo files for translations, correct folder names

Add afrikaans machine translations

Improve translations