pep8: fix empty line counts

top level: 2, else 1

I also advice to not put "pass" into empty classes, but rather a docstring instead of "pass".

test/onionshare_strings_test.py

@@ -21,16 +21,19 @@ import locale
 from onionshare import strings
 from nose import with_setup
 
+
 def test_starts_with_empty_strings():
     """creates an empty strings dict by default"""
     assert strings.strings == {}
 
+
 def test_load_strings_defaults_to_english():
     """load_strings() loads English by default"""
     locale.getdefaultlocale = lambda: ('en_US', 'UTF-8')
     strings.load_strings()
     assert strings._('wait_for_hs') == "Waiting for HS to be ready:"
 
+
 def test_load_strings_loads_other_languages():
     """load_strings() loads other languages in different locales"""
     locale.getdefaultlocale = lambda: ('fr_FR', 'UTF-8')