* No more code inside lib/__init__.py

* Fixed a circular import raised only when using commands like 'manage.py syncdb'

lib/sysutils.py

@@ -0,0 +1,23 @@
+# coding: utf-8
+
+"""
+This module extra functions/shortcuts to communicate with the system
+(executing commands, etc.)
+"""
+
+from modoboa.lib import parameters
+
+def exec_cmd(cmd, **kwargs):
+    import subprocess
+
+    p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, **kwargs)
+    output = p.communicate()[0]
+    return p.returncode, output
+
+def exec_as_vuser(cmd):
+    code, output = exec_cmd("sudo -u %s %s" \
+                                % (parameters.get_admin("VIRTUAL_UID", app="admin"), cmd))
+    if code:
+        exec_cmd("echo '%s' >> /tmp/vmail.log" % output)
+        return False
+    return True