[fix] Fix queries in Hebrew and Norwegian so they give results in the right language

[MarcAbonce]

Right now when you query Google in Hebrew, all results are in the wrong language. E.g. :he !google iphone. The same bug can be reproduced in other engines when using Norwegian. This happens because some languages have more than one possible language code.

This was a mistake on my part. This was supposedly fixed in #1252, but I forgot to pass a parameter in some engines.

[kvch]

Sorry for the delay. I tested your branch and I get the following error message when I use the example search query you mentioned.

ERROR:searx.search:engine google : exception : global name 'language_aliases' is not defined
Traceback (most recent call last):
  File "/home/n/p/searx/searx/search.py", line 104, in search_one_request_safe
    search_results = search_one_request(engine, query, request_params)
  File "/home/n/p/searx/searx/search.py", line 73, in search_one_request
    engine.request(query, request_params)
  File "/home/n/p/searx/searx/engines/google.py", line 169, in request
    language = match_language(params['language'], supported_languages, language_aliases)
NameError: global name 'language_aliases' is not defined

[MarcAbonce]

Fixed. It should be working now.

[kvch]

Thank you!