Update icu to tzdata 2014h.

From the release notes:

  Changes affecting past time stamps

    America/Jamaica's 1974 spring-forward transition was Jan. 6, not Apr. 28.

    Shanks says Asia/Novokuznetsk switched from LMT (not "NMT") on 1924-05-01,
    not 1920-01-06.  The old entry was based on a misinterpretation of Shanks.

    Some more zones have been turned into links, when they differed
    from existing zones only for older time stamps.  As usual,
    these changes affect UTC offsets in pre-1970 time stamps only.
    Their old contents have been moved to the 'backzone' file.
    The affected zones are: Africa/Blantyre, Africa/Bujumbura,
    Africa/Gaborone, Africa/Harare, Africa/Kigali, Africa/Lubumbashi,
    Africa/Lusaka, Africa/Maseru, and Africa/Mbabane.

Bug: 17731498
Change-Id: Ie5d8a251127fa5f05c11dec7eee61e3d93a35b8b
Update sl zones data to CLDR 26.

(The reported bug was Europe/Belgrade not being shown as "Beograd".)

Bug: 17422234
Change-Id: Idcd16f947e6e076be5b44c7e1400afe643ea05f1
Merge branch 'master' of https://android.googlesource.com/platform/external/icu into HEAD