corresponding to their dependencies, so that every system is
initialized before the ones that (theoretically) depend on it.
Fixes bug 33316; bugfix on 0.4.0.1-alpha.
+
+ o Minor features (tests):
+ - Initialize all subsystems at the beginning of our unit test harness,
+ to avoid crashes due to uninitialized subsystems.
+ Follow-up from ticket 33316.
+
+ o Code simplification and refactoring:
+ - Merge the orconn and ocirc events into the "core" subsystem, which
+ manages or connections and origin circuits. Previously they
+ were isolated in subsystems of their own.