avocado: Sanitize namespace

It is not necessary to internally import the libraries like
we've been doing so far.
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>

avocado/__init__.py

@@ -12,16 +12,6 @@
 # Copyright: Red Hat Inc. 2013-2014
 # Author: Lucas Meneghel Rodrigues <lmr@redhat.com>
 
-import aexpect
-import cli
-import core
-
-import job
-import test
-import version
-import linux
-
-import logging.config
 
 DEFAULT_LOGGING = {
     'version': 1,
@@ -59,5 +49,5 @@ DEFAULT_LOGGING = {
     }
 }
 
-
-logging.config.dictConfig(DEFAULT_LOGGING)
+from logging import config
+config.dictConfig(DEFAULT_LOGGING)

avocado/cli/__init__.py

@@ -11,5 +11,3 @@
 #
 # Copyright: Red Hat Inc. 2013-2014
 # Author: Lucas Meneghel Rodrigues <lmr@redhat.com>
-
-import app

avocado/utils/__init__.py

@@ -11,18 +11,3 @@
 #
 # Copyright: Red Hat Inc. 2013-2014
 # Author: Lucas Meneghel Rodrigues <lmr@redhat.com>
-
-import archive
-import astring
-import aurl
-import build
-import crypto
-import download
-import io
-import memory
-import network
-import params
-import process
-import remote
-import virt
-import wait

scripts/avocado

@@ -22,8 +22,8 @@ basedir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 if os.path.isdir(os.path.join(basedir, 'avocado')):
     sys.path.append(basedir)
 
-import avocado
+from avocado.cli.app import AvocadoApp
 
 if __name__ == '__main__':
-    app = avocado.cli.app.AvocadoApp()
+    app = AvocadoApp()
     sys.exit(app.run())