Allow to perform a search while adding an engine (or a category) without adding it "officially" to the request.
'?' is used to add an engine without modifying anything else to the request. For example, you can perform a search in the 'general' category, and if you add '?tw' the result from Twitter will be added to the originals results.

Use human readable date for infobox

Moar engines

improve Favicons

[enh] update translations

Lots of Flake8 corrections
Maybe we should change the rule to allow lines of 120 chars. It seems more usable.

Big twitter correction : now it outputs the words in right order...

Digg engines, with thumbnails
Add pubdate for twitter

fetched from https://github.com/pointhi/leaflet-color-markers

Conflicts:
	searx/templates/courgette/result_templates/default.html
	searx/templates/courgette/result_templates/map.html
	searx/templates/courgette/result_templates/videos.html
	searx/templates/default/result_templates/default.html
	searx/templates/default/result_templates/map.html
	searx/templates/default/result_templates/videos.html
	searx/webapp.py

SubtitleSeeker Engine

Rework Flickr Engine