Grouped the installed python scripts into a single wesnoth module...

...as to not clutter up the python lib dir too much.

data/tools/wmllint

@@ -27,7 +27,7 @@
 # terrain coding it might get confused.
 
 import sys, os, re, getopt, curses.ascii, string, copy
-from wmltools import *
+from wesnoth.wmltools import *
 
 filemoves = {
     # Older includes all previous to 1.3.1.

data/tools/wmlmove

@@ -38,7 +38,7 @@ translation files.
 ''' 
 
 import sys, os, time, re, getopt, sre_constants, md5
-import wmltools
+import wesnoth.wmltools
 
 if __name__ == "__main__":
     # Process options.

data/tools/wmlscope

@@ -50,7 +50,7 @@
 # The reporting format is compatible with GNU Emacs compile mode.
 
 import sys, os, time, re, getopt, md5
-from wmltools import *
+from wesnoth.wmltools import *
 
 def interpret(lines, css):
     "Interpret the ! convention for .cfg comments."