install-iis: use logging.config.fileConfig instead of paste.script copy

paste.script.util.logging_config is an old copy of logging.config from
Python 2.5.1 (see [1]). There are no paste-specific details in it.

In other places, we are always using logging.config directly, there is no
reason not to do it in install-iis.


[1] https://bitbucket.org/wilig/pastescript/commits/04d0db6b2f5ab360bdaa5b10511d969a24fde0ec

docs/setup.rst

@@ -544,7 +544,7 b' Example WSGI dispatch script:'
     site.addsitedir("/srv/kallithea/venv/lib/python2.7/site-packages")
 
     ini = '/srv/kallithea/my.ini'
-    from paste.script.util.logging_config import fileConfig
+    from logging.config import fileConfig
     fileConfig(ini)
     from paste.deploy import loadapp
     application = loadapp('config:' + ini)
@@ -560,7 +560,7 b' Or using proper virtualenv activation:'
     os.environ['HOME'] = '/srv/kallithea'
 
     ini = '/srv/kallithea/kallithea.ini'
-    from paste.script.util.logging_config import fileConfig
+    from logging.config import fileConfig
     fileConfig(ini)
     from paste.deploy import loadapp
     application = loadapp('config:' + ini)

kallithea/bin/kallithea_cli_iis.py

@@ -30,7 +30,7 b' import os'
 
 def __ExtensionFactory__():
     from paste.deploy import loadapp
-    from paste.script.util.logging_config import fileConfig
+    from logging.config import fileConfig
     fileConfig('%(inifile)s')
     application = loadapp('config:%(inifile)s')