Renamed Translations and Locale

Previously at the end of l10n.py, the classes Translation and Locale
were overwritten with singleton instances of their types. This is both
bad practice and makes type checkers want to stab people. This change
should not affect any external code as the names they got for
Translations and Locale were the instances anyway.

l10n.py

@@ -58,7 +58,7 @@ elif platform == 'win32':
     GetNumberFormatEx.restype = ctypes.c_int
 
 
-class Translations(object):
+class _Translations:
 
     FALLBACK = 'en'  # strings in this code are in English
     FALLBACK_NAME = 'English'
@@ -86,7 +86,7 @@ class Translations(object):
         :param lang: The language to translate to, defaults to the preferred language
         """
         available = self.available()
-        available.add(Translations.FALLBACK)
+        available.add(_Translations.FALLBACK)
         if not lang:
             # Choose the default language
             for preferred in Locale.preferredLanguages():
@@ -133,12 +133,12 @@ class Translations(object):
         else:
             for line in h:
                 if line.strip():
-                    match = Translations.TRANS_RE.match(line)
+                    match = _Translations.TRANS_RE.match(line)
                     if match:
                         to_set = match.group(2).replace(r'\"', u'"').replace(u'{CR}', u'\n')
                         translations[match.group(1).replace(r'\"', u'"')] = to_set
 
-                    elif __debug__ and not Translations.COMMENT_RE.match(line):
+                    elif __debug__ and not _Translations.COMMENT_RE.match(line):
                         print(f'Bad translation: {line.strip()}')
 
         if translations.get(LANGUAGE_ID, LANGUAGE_ID) == LANGUAGE_ID:
@@ -190,7 +190,7 @@ class Translations(object):
         ])
         names.update(sorted(
             [(lang, self.contents(lang).get(LANGUAGE_ID, lang)) for lang in self.available()] +  # type: ignore
-            [(Translations.FALLBACK, Translations.FALLBACK_NAME)],
+            [(_Translations.FALLBACK, _Translations.FALLBACK_NAME)],
             key=lambda x: x[1]
         ))  # Sort by name
 
@@ -238,7 +238,7 @@ class Translations(object):
             return codecs.open(join(self.respath(), f'{lang}.strings'), 'r', 'utf-8')
 
 
-class Locale(object):
+class _Locale:
     """Locale holds a few utility methods to convert data to and from localized versions."""
 
     def __init__(self):
@@ -350,8 +350,8 @@ class Locale(object):
 
 
 # singletons
-Locale = Locale()
-Translations = Translations()
+Locale = _Locale()
+Translations = _Translations()
 
 
 # generate template strings file - like xgettext