Added new supported items in itemRemove item class.

Added the ability to remove charges and projected items using the
itemRemove built in context menu.

In this commit I fixed a minor bug in the projected view that caused the
right clicked item not to be SHOWN as selected until after the context
menu had been spawned and closed.

I also removed all parent references from the ContextMenu class and sub
classes. I am instead using the fit service to do all the work of
removing the items in the itemRemove class.

gui/contextMenu.py

@@ -26,7 +26,7 @@ class ContextMenu(object):
         ContextMenu.menus.append(cls)
 
     @classmethod
-    def getMenu(cls, parent, selection, *fullContexts):
+    def getMenu(cls, selection, *fullContexts):
         menu = wx.Menu()
         menu.info = {}
         menu.selection = selection
@@ -40,7 +40,7 @@ class ContextMenu(object):
             except IndexError:
                 itmContext = None
             for menuHandler in cls.menus:
-                m = menuHandler(parent)
+                m = menuHandler()
                 if m.display(srcContext, selection):
                     amount += 1
                     texts = m.getText(itmContext, selection)