restructure code and use frappy.client for SECoP

- separation of SECoP part from webserver
- use frappy client instead of own code for SECoP communication

base.py

@@ -0,0 +1,36 @@
+import time
+import logging
+
+
+class Logger(object):
+    def __init__(self, logpath):
+        self.terminal = sys.stdout
+        self.log = open(logpath, "a")
+
+    def write(self, message):
+        self.terminal.write(message)
+        self.log.write(message)
+
+    def flush(self):
+        pass
+
+
+class Instrument:
+    def __init__(self):
+        pass
+
+    def remove(self, client):
+        try:
+            del self.clients[client.id]
+        except KeyError:
+            logging.warning('client already removed %s', client.id)
+
+    def register(self, client):
+        self.clients[client.id] = client
+        return client
+
+
+def get_abs_time(times):
+    now = int(time.time() + 0.999)
+    oneyear = 365 * 24 * 3600
+    return [t + now if t < oneyear else t for t in times]