Run integration tests full screen

I added self.driver.maximize_window() to helpers's setUp,
making all integration tests run full screen (maximizing
the browser's window).

Closes-Bug: #1338630
Change-Id: Idd185ef3a29eb4731d35fa957bf1e7d636237dc8
Imported Translations from Transifex

Change-Id: Ic55bc8a62b2964c65c2ba7641324c9725988e08f
Merge "Run integration tests full screen"