Test suite: testExceptionHandler fails on non english locale

[TheLambdaMancer]

Details of the bug:
---------------------

 The test "testExceptionHandler" of the test suite fails on non english locale:

> testExceptionHandler (tests.errors.TestExceptionHandler) ... FAIL
>
> ======================================================================
> FAIL: testExceptionHandler (tests.errors.TestExceptionHandler)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File "/home/tof/Téléchargements/zim/zim-0.62/tests/errors.py", line 127, in testExceptionHandler
> self.assertEqual(records[0].getMessage(), 'Looks like you found a bug')
> AssertionError: u'Il semble que vous ayez trouv\xe9 un bogue' != 'Looks like you found a bug'
> - Il semble que vous ayez trouvé un bogue
> + Looks like you found a bug

Version affected: 0.62
Procedure: run the test suite.

 Looks like exception handling is working fine but the error message "Looks like you found a bug" is localized in the exception handler though the test expect it in english.

[ealprr (ealprr)]

Full locale issue in test suite:

======================================================================
FAIL: testExceptionHandler (tests.errors.TestExceptionHandler)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/ealprr/projects/zim/tests/errors.py", line 127, in testExceptionHandler
    self.assertEqual(records[0].getMessage(), 'Looks like you found a bug')
AssertionError: u'Il semble que vous ayez trouv\xe9 un bogue' != 'Looks like you found a bug'
- Il semble que vous ayez trouvé un bogue
+ Looks like you found a bug

======================================================================
FAIL: testExceptionHandlerWithGtk (tests.errors.TestExceptionHandler)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/ealprr/projects/zim/tests/errors.py", line 88, in testExceptionHandlerWithGtk
    self.testExceptionHandler()
  File "/home/ealprr/projects/zim/tests/errors.py", line 127, in testExceptionHandler
    self.assertEqual(records[0].getMessage(), 'Looks like you found a bug')
AssertionError: u'Il semble que vous ayez trouv\xe9 un bogue' != 'Looks like you found a bug'
- Il semble que vous ayez trouvé un bogue
+ Looks like you found a bug

======================================================================
FAIL: runTest (tests.objectmanager.TestObjectManager)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/ealprr/projects/zim/tests/objectmanager.py", line 51, in runTest
    ('sourceview', 'Source View', True, SourceViewPlugin, None)
AssertionError: Tuples differ: (u'sourceview', u'Visualiseur ... != ('sourceview', 'Source View', ...

First differing element 1:
Visualiseur de source
Source View

- (u'sourceview',
? -

+ ('sourceview',
- u'Visualiseur de source',
+ 'Source View',
   True,
   <class 'zim.plugins.sourceview.SourceViewPlugin'>,
   None)

======================================================================
FAIL: runTest (tests.plugins.TestPluginClasses)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/ealprr/projects/zim/tests/plugins.py", line 72, in runTest
    self.assertIn(label, manual, 'Preference "%s" for %s plugin not documented in manual page' % (label, name))
AssertionError: Preference "Icône de notification classique" for trayicon plugin not documented in manual page