Clean up installed docs

All old, outdated, manually-generated translations of docs now
go into an "outdated" subdirectory.  The "tuxpaint-docs"/gettext-based
ones are the "first-class citizens".

Don't install the docs directory's "Makefile", or the instructions
for how to release Tux Paint, as those are not necessary to end users.

docs/zh_tw/mkTuxpaintIM.py

@@ -1,46 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: Big5 -*-
-# Copyright: Song Huang <songhuang.tw@gmail.com>
-# create: 2007/11/04
-# License: GNU GPL 
-ver = "0.1"
-
-from optparse import OptionParser
-from codecs import open as copen
-
-if __name__ == '__main__':
-    # parse script arguments
-    optparser = OptionParser(usage='./%prog [options]', version="%prog "+ver)
-    optparser.add_option("-o", "--outputfile",   action="store",  
-                         help=unicode("輸出檔案的名稱","big5"))
-    optparser.add_option("-m", "--phonemap",   action="store",
-                         help=unicode("中文與注音對照表(utf8 - expect file was xcin table:phone.cin)","big5"))
-    (options, args) = optparser.parse_args()
-
-    ## 設定主要變數
-    #  輸出檔名
-    outfile = copen(options.outputfile, "w", "utf8")
-    outfile.write("section\n\n")
-    # 中文與注音對照表
-    phonemap = options.phonemap
-
-    # 執行輸出
-    cinfile = copen(phonemap, "r", "utf8")
-    (bopomofo, chinachar) = cinfile.readline().split()
-    bpmf_count = 0
-    bpmf_temp = bopomofo
-    while bopomofo:
-        if bpmf_temp == bopomofo:
-            bpmf_count += 1
-        else:
-            bpmf_count = 1
-	    bpmf_temp  = bopomofo
-        chinacharnum = str(hex(ord(chinachar)))[2:]
-        outfile.write("%s\t%s%s\t-\t# %s \n" % (chinacharnum, bopomofo, bpmf_count, chinachar))
-	try:
-            (bopomofo, chinachar) = cinfile.readline().split()
-	except:
-            break
-    # 結束
-    cinfile.close()
-    outfile.close()