several improvements and bugfixes

+ rework GUI
  - include a combobox for selection of visibility
  - include a checkbox wether validation should be done in the client
  - remove unused lineEdit
+ improve datatypes
+ improve tests for new descriptive data
+ metaclasse: fix overlooked read_* or write_* func's
+ improve polling
+ Introduce new ErrorClasses
+ dispatcher: use new features of datatypes + PARAMS
+ improve lib
+ autopep8
+ first working version of MLZ_entangle integration
+ split specific stuff into it's own package (MLZ,demo,ess)

Change-Id: I8ac3ce871b28f44afecbba6332ca741095426712

secop/client/baseclient.py

@@ -156,6 +156,7 @@ class Client(object):
             self.log = mlzlog.log.getChild('client', True)
         else:
             class logStub(object):
+
                 def info(self, *args):
                     pass
                 debug = info
@@ -343,14 +344,17 @@ class Client(object):
     def _issueDescribe(self):
         _, self.equipment_id, describing_data = self._communicate('describe')
         try:
-            describing_data = self._decode_substruct(['modules'], describing_data)
+            describing_data = self._decode_substruct(
+                ['modules'], describing_data)
             for modname, module in describing_data['modules'].items():
-                describing_data['modules'][modname] = self._decode_substruct(['parameters', 'commands'], module)
+                describing_data['modules'][modname] = self._decode_substruct(
+                    ['parameters', 'commands'], module)
 
             self.describing_data = describing_data
 
             for module, moduleData in self.describing_data['modules'].items():
-                for parameter, parameterData in moduleData['parameters'].items():
+                for parameter, parameterData in moduleData[
+                        'parameters'].items():
                     datatype = get_datatype(parameterData['datatype'])
                     self.describing_data['modules'][module]['parameters'] \
                         [parameter]['datatype'] = datatype