ticket:9867: New time zone pattern letters/types support for CLDR 23/ICU 51.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33159 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9440: spoof checker, merge updates from branch.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33162 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9842: Fix bad merge to AlphabeticIndex that was submitted under ticket 9440.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33163 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9440: Delete misplaced comma causing build failure

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33164 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9440: Remove more spurious semicolons.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33167 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9440: Namespace tweaks to uspoof.h

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33168 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9867: Added a note about pattern V semantics change in readme.html

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33169 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9867: Minor update in readme.html

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33172 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9602: conversion: add good one-way mapping type |4

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@33173 251d0590-4201-4cf1-90de-194747b24ca1