Update IANA timezone DB to 2016d in M51

Update IANA timezone DB to 2016d in M51

Cherry pick the following CL to M51 branch

Trunk CL: https://codereview.chromium.org/1985243002 .

What's new in 2016d is found at

  http://mm.icann.org/pipermail/tz-announce/2016-April/000038.html

Rebuilt ICU data/assembly files are checked in (not shown in the
codereview due to their sizes).

While I'm at it, add scripts/LICENSE file that is identical to
LICENSE at the top of the Chromium tree. Because LICENSE in
third_party/icu is for ICU and is not applicable to files in scripts/.

BUG=473288
TBR=mark
TEST=In JavaScript console, run the following.
      apr30_2016_1200 = new Date("04/30/2016 12:00Z")
      may01_2016_1200 = new Date("05/01/2016 12:00Z")
      apr30_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})
      may01_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})

  On April 30, 2016, Caracas is 4:30 behind UTC. On May 1, it's 4:00 behind.

Committed: https://chromium.googlesource.com/chromium/deps/icu/+/c665897821cc9a110a9daa7a4adc5df94679c145

[jungshik at Google, 2016-05-27 18:22:42]

Description was changed from

==========
Update IANA timezone DB to 2016d

Cherry pick the following CL to M51 branch

Trunk CL: https://codereview.chromium.org/1985243002 .

What's new in 2016d is found at

  http://mm.icann.org/pipermail/tz-announce/2016-April/000038.html

Rebuilt ICU data/assembly files are checked in (not shown in the
codereview due to their sizes).

While I'm at it, add scripts/LICENSE file that is identical to
LICENSE at the top of the Chromium tree. Because LICENSE in
third_party/icu is for ICU and is not applicable to files in scripts/.

BUG=473288
TBR=mark
TEST=In JavaScript console, run the following.
      apr30_2016_1200 = new Date("04/30/2016 12:00Z")
      may01_2016_1200 = new Date("05/01/2016 12:00Z")
      apr30_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})
      may01_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})

  On April 30, 2016, Caracas is 4:30 behind UTC. On May 1, it's 4:00 behind.
==========

to

==========
Update IANA timezone DB to 2016d in M51

Cherry pick the following CL to M51 branch

Trunk CL: https://codereview.chromium.org/1985243002 .

What's new in 2016d is found at

  http://mm.icann.org/pipermail/tz-announce/2016-April/000038.html

Rebuilt ICU data/assembly files are checked in (not shown in the
codereview due to their sizes).

While I'm at it, add scripts/LICENSE file that is identical to
LICENSE at the top of the Chromium tree. Because LICENSE in
third_party/icu is for ICU and is not applicable to files in scripts/.

BUG=473288
TBR=mark
TEST=In JavaScript console, run the following.
      apr30_2016_1200 = new Date("04/30/2016 12:00Z")
      may01_2016_1200 = new Date("05/01/2016 12:00Z")
      apr30_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})
      may01_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})

  On April 30, 2016, Caracas is 4:30 behind UTC. On May 1, it's 4:00 behind.
==========

[jungshik at Google, 2016-05-27 18:31:49]

Description was changed from

==========
Update IANA timezone DB to 2016d in M51

Cherry pick the following CL to M51 branch

Trunk CL: https://codereview.chromium.org/1985243002 .

What's new in 2016d is found at

  http://mm.icann.org/pipermail/tz-announce/2016-April/000038.html

Rebuilt ICU data/assembly files are checked in (not shown in the
codereview due to their sizes).

While I'm at it, add scripts/LICENSE file that is identical to
LICENSE at the top of the Chromium tree. Because LICENSE in
third_party/icu is for ICU and is not applicable to files in scripts/.

BUG=473288
TBR=mark
TEST=In JavaScript console, run the following.
      apr30_2016_1200 = new Date("04/30/2016 12:00Z")
      may01_2016_1200 = new Date("05/01/2016 12:00Z")
      apr30_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})
      may01_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})

  On April 30, 2016, Caracas is 4:30 behind UTC. On May 1, it's 4:00 behind.
==========

to

==========
Update IANA timezone DB to 2016d in M51

Cherry pick the following CL to M51 branch

Trunk CL: https://codereview.chromium.org/1985243002 .

What's new in 2016d is found at

  http://mm.icann.org/pipermail/tz-announce/2016-April/000038.html

Rebuilt ICU data/assembly files are checked in (not shown in the
codereview due to their sizes).

While I'm at it, add scripts/LICENSE file that is identical to
LICENSE at the top of the Chromium tree. Because LICENSE in
third_party/icu is for ICU and is not applicable to files in scripts/.

BUG=473288
TBR=mark
TEST=In JavaScript console, run the following.
      apr30_2016_1200 = new Date("04/30/2016 12:00Z")
      may01_2016_1200 = new Date("05/01/2016 12:00Z")
      apr30_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})
      may01_2016_1200.toLocaleString("en", {timeZone: "America/Caracas"})

  On April 30, 2016, Caracas is 4:30 behind UTC. On May 1, it's 4:00 behind.

Committed:
https://chromium.googlesource.com/chromium/deps/icu/+/c665897821cc9a110a9daa7...
==========

[jungshik at Google, 2016-05-27 18:31:51]

Committed patchset #1 (id:1) manually as
c665897821cc9a110a9daa7a4adc5df94679c145 (presubmit successful).