fix(pycurl): added missing __all__ imports

rhodecode/lib/vcs/__init__.py

@@ -33,7 +33,8 b' from rhodecode.lib.vcs.exceptions import'
 
 __all__ = [
     'get_vcs_instance', 'get_backend',
-    'VCSError', 'RepositoryError', 'CommitError', 'VCSCommunicationError'
+    'VCSError', 'RepositoryError', 'CommitError', 'VCSCommunicationError',
+    'CurlSession', 'CurlResponse'
 ]
 
 log = logging.getLogger(__name__)