New Feature: Lang Title

[alexsalo]

Get the title in specified language code.

Returns None if lang code or title isn't found, otherwise returns a string with title.

Use case (minimal):

import wikipedia as wk
page = wk.page('cv joint')
print page.lang_title('ru')

> Шарнир равных угловых скоростей

Use case (extended):

import wikipedia as wk
import langid
query_test = 'теория относительности'
langid.set_languages(['en', 'ru'])
detected_langid = langid.classify(query_test)[0]
print 'detected: ' + detected_langid
wk.set_lang(detected_langid)
page = wk.page(query_test)
print page.lang_title('en')

>detected: ru
>Theory of relativity