latest_change_id: Fix a stdout.write call

Fixes #3272
check_names: Add isfuzzy check name

Fixes a crash on custom-mlo when looking for check_names["isfuzzy"]
Core: Sync .gitignore with core
travis: Print Python version as well
Core: Sync file headers and styles
Cleanup: use Django's own staticfiles' template tag

No point in duplicating functionality here.