Start refactoring of the trigger system:

- Move each trigger handler into its own file
- Add dictionary helper classes for easier reading and writing of dict-based data
- Extract the web hook payload -> internal representation building for each trigger system
- Add tests for this transformation
- Remove support for Github archived-based building

endpoints/web.py

@@ -21,8 +21,12 @@ from util.cache import no_cache
 from endpoints.common import common_login, render_page_template, route_show_if, param_required
 from endpoints.decorators import anon_protect
 from endpoints.csrf import csrf_protect, generate_csrf_token, verify_csrf
-from endpoints.trigger import (CustomBuildTrigger, BitbucketBuildTrigger, TriggerProviderException,
-                               BuildTriggerHandler)
+
+from buildtrigger.customhandler import CustomBuildTrigger
+from buildtrigger.bitbuckethandler import BitbucketBuildTrigger
+from buildtrigger.triggerutil import TriggerProviderException
+from buildtrigger.basehandler import BuildTriggerHandler
+
 from util.names import parse_repository_name, parse_repository_name_and_tag
 from util.useremails import send_email_changed
 from util.systemlogs import build_logs_archive