update references to nitro.libvmi module

main.py

@@ -18,16 +18,17 @@
 from pprint import pprint
 
 import libvirt
+from libvmi import LibvmiError
 from docopt import docopt
 
 from nitro.nitro import Nitro
-from nitro.libvmi import LibvmiError
+
 
 
 def init_logger():
     logger = logging.getLogger()
     logger.addHandler(logging.StreamHandler())
-    logger.setLevel(logging.INFO)
+    logger.setLevel(logging.DEBUG)
 
 
 class NitroRunner:

nitro/backends/backend.py

@@ -9,7 +9,7 @@
 from collections import defaultdict
 
 from nitro.event import SyscallDirection
-from nitro.libvmi import LibvmiError
+from libvmi import LibvmiError
 
 class Backend:
     """

nitro/backends/factory.py

@@ -1,4 +1,4 @@
-from nitro.libvmi import VMIOS, Libvmi
+from libvmi import VMIOS, Libvmi
 from nitro.backends.linux import LinuxBackend
 from nitro.backends.windows import WindowsBackend
 

nitro/backends/linux/backend.py

@@ -7,9 +7,9 @@
 
 from ctypes import sizeof, c_void_p
 
+from libvmi import LibvmiError
 from nitro.syscall import Syscall
 from nitro.event import SyscallDirection
-from nitro.libvmi import LibvmiError
 from nitro.backends.linux.process import LinuxProcess
 from nitro.backends.backend import Backend
 from nitro.backends.linux.arguments import LinuxArgumentMap