Huge role refactoring/cleanup. Other commits will propably follow. Because some bugs will exist. Still important for longrun and also for auto docs/help/slideshow generation

roles/web-app-matrix/templates/synapse/log.config.j2

@@ -0,0 +1,25 @@
+version: 1
+
+formatters:
+  precise:
+    format: '%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s'
+
+handlers:
+  file:
+    class: logging.handlers.RotatingFileHandler
+    formatter: precise
+    filename: /data/{{domains.matrix.synapse}}.homeserver.log
+    maxBytes: 10485760
+    backupCount: 3
+  console:
+    class: logging.StreamHandler
+    formatter: precise
+
+loggers:
+  synapse:
+    level: INFO
+    handlers: [file, console]
+
+root:
+  level: INFO
+  handlers: [file, console]