- Ignored 3rd party libraries code from translations

which is not present is repo. But is created when we directly
install requirements from git.
- Included git clean in i18n-roobot-push
To clean artifacts before extracting new translations.

conf/locale/config.yaml

@@ -119,6 +119,8 @@ ignore_dirs:
     # Directories full of auto-generated JS
     - lms/static/js/i18n
     - cms/static/js/i18n
+    # Directories with 3rd party apps.
+    - src
 
 
 # Third-party installed apps that we also extract strings from.  When adding a

pavelib/i18n.py

@@ -243,6 +243,7 @@ def i18n_clean():
 
 @task
 @needs(
+    "pavelib.i18n.i18n_clean",
     "pavelib.i18n.i18n_extract",
     "pavelib.i18n.i18n_transifex_push",
 )