Fix name clash Init() -> Initialise()

The Tango C++ kernel provides a built-in function init().  Unfortunately
are names in Tango (mostly) case-insensitive.  This led to a name clash
with our own Init() function and at first unexplainable behaviour.

RCUSCC/RCUSCC/RCUSCC.py

@@ -60,7 +60,7 @@ class RCUSCC(Device):
         * -> OFF:        Triggered by user.   Device is turned off. Triggered by the Off() command,
         FAULT -> INIT:   Triggered by user.   Device is reinitialised to recover from an error,
 
-        The user triggers their transitions by the commands reflecting the target state (Init(), On(), Fault()).
+        The user triggers their transitions by the commands reflecting the target state (Initialise(), On(), Fault()).
     """
     client = 0
     name_space_index = 0
@@ -392,7 +392,7 @@ class RCUSCC(Device):
 
         This method allows for any memory or other resources allocated in the
         init_device method to be released.  This method is called by the device
-        destructor and by the device Init command.
+        destructor and by the device Init command (a Tango built-in).
         """
         self.debug_stream("Shutting down...")
 
@@ -607,7 +607,7 @@ class RCUSCC(Device):
     @command()
     @only_in_states([DevState.FAULT, DevState.OFF])
     @DebugIt()
-    def Init(self):
+    def Initialise(self):
         """
         Command to ask for initialisation of this device. Can only be called in FAULT or OFF state.
 
@@ -668,7 +668,7 @@ class RCUSCC(Device):
 
         This device will try to reconnect once, and transition to the ON state on success.
 
-        If reconnecting fails, the user needs to call Init() to retry to restart this device.
+        If reconnecting fails, the user needs to call Initialise() to retry to restart this device.
 
         :return:None
         """