software/wendelin-telecom: Target wendelin-telecom features branch

This is strictly used for unit testing with an ERP5 Test Suite

software/wendelin-telecom/software.cfg

@@ -33,8 +33,8 @@ depends =
 [wendelin-telecom]
 <= erp5
 repository = https://lab.nexedi.com/paul.graydon/wendelin-telecom.git
-branch = master
-revision = 546a7e2ee9fab1b08c67219e5c1f8f50f9cda1f0
+branch = features
+revision =
 
 [local-bt5-repository]
 list += ${wendelin-telecom:location}/bt5