merged changes for lakeshore and ccu4

cfg/main/ori7test_cfg.py

@@ -0,0 +1,17 @@
+from frappy_psi.ccracks import Rack
+
+Node('ori7test.psi.ch',
+     'ORI7 test',
+     'tcp://5000'
+     )
+
+rack = Rack(Mod)
+
+with rack.lakeshore() as ls:
+    ls.sensor('Ts', channel='C', calcurve='x186350')
+    ls.loop('T', channel='B', calcurve='x174786')
+    ls.heater('htr', '100W', 100)
+
+rack.ccu(he=True, n2=True)
+
+rack.hepump()