Merge pull request #350 from erickvermot/napps_perm_manager

Sets the appropriate permission to the napps folder.

kytos/core/napps/manager.py

@@ -1,6 +1,7 @@
 """Manage Network Application files."""
 import json
 import logging
+import os
 import shutil
 import urllib
 from pathlib import Path
@@ -89,6 +90,7 @@ def install(self, napp_uri, enable=True):
             dst = self._installed / napp.username / napp.name
             self._create_module(dst.parent)
             shutil.move(str(napp_folder), str(dst))
+            os.chmod(dst, mode=0o755)
         finally:
             if pkg_folder and pkg_folder.exists():
                 shutil.rmtree(str(pkg_folder))