Extend list of known languages

These are codes seen in wild on Hosted Weblate.
Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/html/i18n.html

@@ -44,14 +44,17 @@ for l in Language.objects.exclude(name__contains='generated').values_list('name'
 {% trans "Burmese" %}
 {% trans "Catalan" %}
 {% trans "Central Khmer" %}
+{% trans "Chamorro" %}
+{% trans "Cherokee" %}
 {% trans "Chhattisgarhi" %}
 {% trans "Chiga" %}
 {% trans "Chinese" %}
-{% trans "Chinese (Hong Kong)" %}
 {% trans "Chinese (China)" %}
+{% trans "Chinese (Hong Kong)" %}
 {% trans "Chinese (Taiwan)" %}
 {% trans "Colognian" %}
 {% trans "Cornish" %}
+{% trans "Cree" %}
 {% trans "Croatian" %}
 {% trans "Czech" %}
 {% trans "Danish" %}
@@ -85,6 +88,7 @@ for l in Language.objects.exclude(name__contains='generated').values_list('name'
 {% trans "Gun" %}
 {% trans "Haitian" %}
 {% trans "Hausa" %}
+{% trans "Hawaiian" %}
 {% trans "Hebrew" %}
 {% trans "Hindi" %}
 {% trans "Hungarian" %}
@@ -112,6 +116,7 @@ for l in Language.objects.exclude(name__contains='generated').values_list('name'
 {% trans "Lingala" %}
 {% trans "Lithuanian" %}
 {% trans "Lojban" %}
+{% trans "Low German" %}
 {% trans "Luxembourgish" %}
 {% trans "Macedonian" %}
 {% trans "Maithili" %}
@@ -134,7 +139,9 @@ for l in Language.objects.exclude(name__contains='generated').values_list('name'
 {% trans "Norwegian (old code)" %}
 {% trans "Norwegian Bokmål" %}
 {% trans "Norwegian Nynorsk" %}
+{% trans "Nyanja" %}
 {% trans "Occitan" %}
+{% trans "Ojibwa" %}
 {% trans "Oriya" %}
 {% trans "Ossetian" %}
 {% trans "Papiamento" %}
@@ -189,6 +196,7 @@ for l in Language.objects.exclude(name__contains='generated').values_list('name'
 {% trans "Uzbek (latin)" %}
 {% trans "Valencian" %}
 {% trans "Venda" %}
+{% trans "Venetian" %}
 {% trans "Vietnamese" %}
 {% trans "Walloon" %}
 {% trans "Welsh" %}

weblate/lang/data.py

@@ -365,6 +365,54 @@ EXTRALANGS = (
         2,
         'n != 1',
     ),
+    (
+        'nds',
+        'Low German',
+        2,
+        'n != 1',
+    ),
+    (
+        'hav',
+        'Hawaiian',
+        2,
+        'n != 1',
+    ),
+    (
+        'vec',
+        'Venetian',
+        2,
+        'n != 1',
+    ),
+    (
+        'oj',
+        'Ojibwa',
+        2,
+        'n != 1',
+    ),
+    (
+        'ch',
+        'Chamorro',
+        2,
+        'n != 1',
+    ),
+    (
+        'chr',
+        'Cherokee',
+        2,
+        'n != 1',
+    ),
+    (
+        'cr',
+        'Cree',
+        2,
+        'n != 1',
+    ),
+    (
+        'ny',
+        'Nyanja',
+        2,
+        'n != 1',
+    ),
 )
 
 NO_CODE_LANGUAGES = frozenset((

weblate/trans/checks/same.py

@@ -833,11 +833,13 @@ SAME_BLACKLIST = frozenset((
     'armenian',
     'assamese',
     'asturian',
+    'austrian',
     'aymará',
     'azerbaijani',
     'bashkir',
     'basque',
     'belarusian',
+    'belgium',
     'bengali',
     'bodo',
     u'bokmål',
@@ -848,11 +850,15 @@ SAME_BLACKLIST = frozenset((
     'burmese',
     'canada',
     'catalan',
+    'central khmer',
+    'chamorro',
+    'cherokee',
     'chhattisgarhi',
     'chiga',
     'chinese',
     'colognian',
     'cornish',
+    'cree',
     'croatian',
     'czech',
     'danish',
@@ -867,6 +873,7 @@ SAME_BLACKLIST = frozenset((
     'finnish',
     'flemish',
     'franco',
+    u'franco-provençal',
     'french',
     'frisian',
     'friulian',
@@ -881,6 +888,7 @@ SAME_BLACKLIST = frozenset((
     'gun',
     'haitian',
     'hausa',
+    'hawaiian',
     'hebrew',
     'hindi',
     'hungarian',
@@ -926,13 +934,14 @@ SAME_BLACKLIST = frozenset((
     'nepali',
     'norwegian',
     'nynorsk',
+    'nyanja',
     'occitan',
+    'ojibwa',
     'oriya',
     'ossetian',
     'papiamento',
     'pedi',
     'persian',
-    'piedmontese',
     'piemontese',
     'piqad',
     'polish',
@@ -979,6 +988,7 @@ SAME_BLACKLIST = frozenset((
     'uzbek',
     'valencian',
     'venda',
+    'venetian',
     'vietnamese',
     'walloon',
     'welsh',