ICU-8995 update to 2011-12-15 version of IdnaMappingTable.txt

X-SVN-Rev: 31230

icu4c/source/data/unidata/changes.txt

@@ -23,8 +23,8 @@ Tools simplified since the Unicode 6.1 update. See
 - icutools/unicode/makedefs.sh was deleted, so one fewer place for version & path updates
 
 * file preparation
-- ucdcopy.py and genpname/preparse.pl replaced by preparseucd.py:
-- ~/svn.icu/tools/trunk/src/unicode$ py/preparseucd.py ~/uni61/20120118/ucd ~/svn.icu/trunk/src ~/svn.icu/tools/trunk/src
+- ucdcopy.py, idna2nrm.py and genpname/preparse.pl replaced by preparseucd.py:
+- ~/svn.icu/tools/trunk/src/unicode$ py/preparseucd.py ~/uni61/20120118 ~/svn.icu/trunk/src ~/svn.icu/tools/trunk/src
 - This writes files (especially ppucd.txt) to the ICU4C unidata and testdata subfolders.
 - Check test file diffs for previously commented-out, known-failing data lines;
   probably need to keep those commented out.
@@ -45,6 +45,12 @@ Tools simplified since the Unicode 6.1 update. See
 * no more manual updates of source/data/unidata/norm2/nfkc_cf.txt
 - it is now generated by preparseucd.py
 
+* no more separate idna2nrm.py run and manual copying to generate source/data/unidata/norm2/uts46.txt
+- it is now generated by preparseucd.py
+- make sure that the Unicode data folder passed into preparseucd.py
+  includes a copy of http://www.unicode.org/Public/idna/6.1.0/IdnaMappingTable.txt
+  (can be in some subfolder)
+
 * generate normalization data files
 - ~/svn.icu/trunk/dbg$ export LD_LIBRARY_PATH=~/svn.icu/trunk/dbg/lib
 - ~/svn.icu/trunk/dbg$ SRC_DATA_IN=~/svn.icu/trunk/src/source/data/in