Min width 50 px to oscar theme category. #1158

Fix piratebay URL

Closes #1229

Fix Gigablast engine

Closes #1293

Fix acgsou encoding error on python2

Switch acgsou to http

[Feature] Acgsou as a searchable engine

Fix nyaa to use https

Hide page buttons when infinite scrolling is enabled

Switched currency converter to duckduckgo and added Bitcoin to currency list

Fix findx engine

[fix] Force English results in Google when using en-US

first one to galician language (gl) 
*****
as said before, I got no answer to allow translation to galician into Transifex, so PLEASE consider merge this into the searx project from this PR

Dont hesitate to ask me any question you have.

Thanks.

create gl/LC_MESSAGES/messages.po

I had requested on transifex create and the join galician team, but I had no answer so I've forked it here and manually create this .po file from english source

primeira edición

Add pronunciaton of searx to README

[fix] Engine fixes

This solves a bug with Yahoo where some results don't specify
a protocol.

[mod] Refactor engine's search language handling

Add match_language function in utils to match any user given
language code with a list of engine's supported languages.

Also add language_aliases dict on each engine to translate
standard language codes into the custom codes used by the engine.