[fix] urbandictionary html mods
[fix] whitespaces removed
[enh] own useragent handling init
[doc] readme update
[ehn] Add a 'featured result feature'm putting on top of the reasults ddg definitions and wikipedia (ugly html / css)
[ehn] Add a templates for videos, so the thumbnails all have the same side
[ehn] Add possibility to add icon in results (more ugly html / css, need fix)
Merge branch 'featured_result' of https://github.com/pw3t/searx into featured_result

Conflicts:
	searx/templates/results.html
	searx/webapp.py