Remove extractor field from Crawl model and fix tests

- Remove extractor field from Crawl model (moved to config dict)
- Update migration 0002_drop_seed_model to not add extractor
- Update archivebox_add.py to use config['PARSER'] instead
- Update admin.py recrawl to not pass extractor
- Update jsonl.py serialization to not include extractor
- Update test schema SCHEMA_0_8 to not include extractor
- Set default timeout to 60s for test commands

archivebox/crawls/admin.py

@@ -233,7 +233,6 @@ class CrawlAdmin(ConfigEditorMixin, BaseModelAdmin):
 
         new_crawl = Crawl.objects.create(
             urls=obj.urls,
-            extractor=obj.extractor,
             max_depth=obj.max_depth,
             tags_str=obj.tags_str,
             config=obj.config,