Make is_task backwards compatible (#958)

* Make is_task backwards compatible

* Make is_task backwards compatible

* update to 4.0.1

* Version 4.0.1

---------

Co-authored-by: Peter Boers <peter.boers@surf.nl>

Author: Igoranze

.bumpversion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 4.0.0
+current_version = 4.0.1
 commit = False
 tag = False
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(rc(?P<build>\d+))?

orchestrator/__init__.py

@@ -13,7 +13,7 @@
 
 """This is the orchestrator workflow engine."""
 
-__version__ = "4.0.0"
+__version__ = "4.0.1"
 
 from orchestrator.app import OrchestratorCore
 from orchestrator.settings import app_settings