Tests for Notifier to always use 'en', complements bf5b13b20d
Tests for Notifier to always use 'en', complements bf5b13b20d

In some machines the tests were passing and in others they were failing
when trying to compare a string in 'en' with a string in 'pt-br'. Now we
set the language to be always 'en' when testing.

m-narayan/agora-conf,arrivu/web-conf,arrivu/web-conf,m-narayan/agora-conf,arrivu/web-conf,m-narayan/agora-conf,m-narayan/agora-conf,m-narayan/agora-conf,m-narayan/agora-conf,arrivu/web-conf,arrivu/web-conf,arrivu/web-conf,m-narayan/agora-conf,arrivu/web-conf