Add basic PayPal module

Limitations for now:
* Only French-style (UUU,CC and not UUU.CC) balances; the choice is not left up to the user so
  it's hard to test
* No history (should be easy to add)

modules/paypal/__init__.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+
+# Copyright(C) 2013      Laurent Bachelier
+#
+# This file is part of weboob.
+#
+# weboob is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# weboob is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with weboob. If not, see <http://www.gnu.org/licenses/>.
+
+
+from .backend import PaypalBackend
+
+__all__ = ['PaypalBackend']