ticket:10934: Fixed a couple of memory leaks.

git-svn-id: http://source.icu-project.org/repos/icu/icu@36079 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10934: The tz database abbreviation support in ICU4C

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ticket:10802: Implementation and initial test done.

git-svn-id: http://source.icu-project.org/repos/icu/icu@36083 251d0590-4201-4cf1-90de-194747b24ca1