New style: convert Blog cube to new layout

- move files to cubicweb_blog folder
- update setup.py, MANIFEST.in, cubicweb_blog/__pkginfo__.py

MANIFEST.in

-include *.py
-include */*.py
-recursive-include data *.gif *.jpg *.png *.css external_resources
-recursive-include i18n *.po
+include setup.py
+include README
 
+recursive-include cubicweb_blog *
+recursive-include cubicweb_blog/data *.gif *.jpg *.png *.css external_resources
+recursive-include cubicweb_blog/i18n *.po
+recursive-include cubicweb_blog/migration *.py

__pkginfo__.py → cubicweb_blog/__pkginfo__.py

@@ -30,31 +30,3 @@ __recommends__ = {'cubicweb-tag': None,
                   'feedparser': None,
                   'rdflib': None,
                   }
-
-
-# packaging ###
-
-from os import listdir as _listdir
-from os.path import join, isdir
-from glob import glob
-
-THIS_CUBE_DIR = join('share', 'cubicweb', 'cubes', modname)
-
-
-def listdir(dirpath):
-    return [join(dirpath, fname) for fname in _listdir(dirpath)
-            if fname[0] != '.' and not fname.endswith('.pyc')
-            and not fname.endswith('~')
-            and not isdir(join(dirpath, fname))]
-
-data_files = [
-    # common files
-    [THIS_CUBE_DIR, [fname for fname in glob('*.py') if fname != 'setup.py']],
-]
-# check for possible extended cube layout
-for dirname in ('entities', 'views', 'sobjects', 'hooks', 'schema',
-                'data', 'i18n', 'migration', 'wdoc'):
-    if isdir(dirname):
-        data_files.append([join(THIS_CUBE_DIR, dirname), listdir(dirname)])
-# Note: here, you'll need to add subdirectories if you want
-# them to be included in the debian package