reworking messages

1) start 'bin/secop-server test'
2) connect to localhost port 10767
3) enter help<enter>
4) enjoy

Change-Id: I488d5f9cdca8c91c583691ab23f541a4a8759f4e

secop/protocol/encoding/__init__.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+#  -*- coding: utf-8 -*-
+# *****************************************************************************
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+#
+# This program 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 General Public License for more
+# details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# Module authors:
+#   Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
+#
+# *****************************************************************************
+
+"""Encoding/decoding Messages"""
+
+# implement as class as they may need some internal 'state' later on
+# (think compressors)
+
+# Base classes
+
+
+class MessageEncoder(object):
+    """en/decode a single Messageobject"""
+
+    def encode(self, messageobj):
+        """encodes the given message object into a frame"""
+        raise NotImplemented
+
+    def decode(self, frame):
+        """decodes the given frame to a message object"""
+        raise NotImplemented
+
+from demo_v2 import DemoEncoder as DemoEncoderV2
+from demo_v3 import DemoEncoder as DemoEncoderV3
+from demo_v4 import DemoEncoder as DemoEncoderV4
+from text import TextEncoder
+from pickle import PickleEncoder
+from simplecomm import SCPEncoder
+
+ENCODERS = {
+    'pickle': PickleEncoder,
+    'text': TextEncoder,
+    'demo_v2': DemoEncoderV2,
+    'demo_v3': DemoEncoderV3,
+    'demo_v4': DemoEncoderV4,
+    'demo': DemoEncoderV4,
+    'scp': SCPEncoder,
+}
+
+__ALL__ = ['ENCODERS']