ticket:10835 Improve performance of case insensitive find operations.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@35683 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10827: Updated ICU modified version of tzcode to 2014b level.

git-svn-id: http://source.icu-project.org/repos/icu/icu/trunk@35684 251d0590-4201-4cf1-90de-194747b24ca1