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

etc/ccr12.cfg

@@ -0,0 +1,45 @@
+[equipment]
+id=ccr12
+
+[interface tcp]
+interface=tcp
+bindto=0.0.0.0
+bindport=10767
+# protocol to use for this interface
+framing=eol
+encoding=demo
+
+[device automatik]
+class=secop_mlz.entangle.NamedDigitalOutput
+tangodevice=tango://ccr12:10000/box/plc/_automatik
+mapping=dict(Off=0,p1=1,p2=2)
+
+[device compressor]
+class=secop_mlz.entangle.NamedDigitalOutput
+tangodevice=tango://ccr12:10000/box/plc/_cooler_onoff
+mapping=dict(Off=0,On=1)
+
+[device gas]
+class=secop_mlz.entangle.NamedDigitalOutput
+tangodevice=tango://ccr12:10000/box/plc/_gas_onoff
+mapping=dict(Off=0,On=1)
+
+[device vacuum]
+class=secop_mlz.entangle.NamedDigitalOutput
+tangodevice=tango://ccr12:10000/box/plc/_vacuum_onoff
+mapping=dict(Off=0,On=1)
+
+[device p1]
+class=secop_mlz.entangle.AnalogInput
+tangodevice=tango://ccr12:10000/box/plc/_p1
+
+[device p2]
+class=secop_mlz.entangle.AnalogInput
+tangodevice=tango://ccr12:10000/box/plc/_p2
+
+[device curve_p2]
+class=secop_mlz.entangle.NamedDigitalInput
+tangodevice=tango://ccr12:10000/box/plc/_curve
+value.default='undefined'
+mapping=dict(curve1=1,curve2=2,curve3=3)
+