avocado.aexpect: Fix bugs that broke avocado-virt

We can't require avocado imports in the server part of
the aexpect process because that will be executed
stand alone, and will not have access to the rest
of the avocado libraries. The bugs were introduced
in commits:

6f380e0d
3fa9077f

This patch fixes the problem by moving the imports
to the client side of the module.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado/aexpect.py

@@ -15,10 +15,6 @@ import tempfile
 import logging
 import shutil
 
-from avocado.utils import genio
-from avocado.utils import path as utils_path
-
-
 BASE_DIR = os.environ.get('TMPDIR', '/tmp')
 # If you want to debug problems with your aexpect instances, setting
 # DEBUG = True will leave the temporary files created by aexpect around
@@ -277,7 +273,9 @@ except ImportError:
 from avocado.utils import astring
 from avocado.utils import data_factory
 from avocado.utils import process
+from avocado.utils import genio
 from avocado.utils import wait
+from avocado.utils import path as utils_path
 
 
 class ExpectError(Exception):