Log parse errors in changes

Fixes #862
Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/trans/models/changes.py

@@ -160,6 +160,7 @@ class Change(models.Model):
     ACTION_REBASE = 21
     ACTION_FAILED_MERGE = 22
     ACTION_FAILED_REBASE = 23
+    ACTION_PARSE_ERROR = 24
 
     ACTION_CHOICES = (
         (ACTION_UPDATE, ugettext_lazy('Resource update')),
@@ -186,6 +187,7 @@ class Change(models.Model):
         (ACTION_REBASE, ugettext_lazy('Rebased repository')),
         (ACTION_FAILED_MERGE, ugettext_lazy('Failed merge on repository')),
         (ACTION_FAILED_REBASE, ugettext_lazy('Failed rebase on repository')),
+        (ACTION_PARSE_ERROR, ugettext_lazy('Parse error')),
     )
 
     ACTIONS_SUBPROJECT = set((

weblate/trans/models/subproject.py

@@ -854,6 +854,11 @@ class SubProject(models.Model, PercentMixin, URLMixin, PathMixin):
             translation,
             str(error)
         )
+        Change.objects.create(
+            subproject=self,
+            translation=translation,
+            action=Change.ACTION_PARSE_ERROR,
+        )
         raise ParseError(str(error))
 
     def update_branch(self, request=None, method=None):