Added the character import enhancement (reads native EVE CCP XML)

Character class inherits from 'object' now for consitency
 (as fit class does)
Strings updated for consistency (e.g., 'EvE' -> 'EVE')
Minor cleanup of the previous skills exporter enhancement
Moved character change/update event bindings to globalEvents (as fit changes are) for better re-use

gui/globalEvents.py

@@ -1,3 +1,5 @@
 import wx.lib.newevent
 
-FitChanged, FIT_CHANGED = wx.lib.newevent.NewEvent()
+FitChanged, FIT_CHANGED = wx.lib.newevent.NewEvent()
+CharListUpdated, CHAR_LIST_UPDATED = wx.lib.newevent.NewEvent()
+CharChanged, CHAR_CHANGED = wx.lib.newevent.NewEvent()