Windows support (freezing).

Client notification support.
Hypervisor manager changes.
IOU reload support.
Switch to non-dynamic module loading because of a multiprocessing
problem on Windows.

gns3server/version.py

@@ -23,5 +23,5 @@
 # or negative for a release candidate or beta (after the base version
 # number has been incremented)
 
-__version__ = "0.1.dev"
-__version_info__ = (0, 1, 0, -99)
+__version__ = "0.9.dev"
+__version_info__ = (0, 9, 0, -99)