build: Intl: bump ICU4C from 54 to 55

[srl295]

Fixes: #25855
node was using ICU4C 54 ( released 2014-oct-06 )

• Bump to ICU4C 55 ( released 2015-apr-08)
  • Timezone fixes, translation fixes, bug/performance fixes.
  • Speed improvements in date formatting
  • ICU4C 55 changelog: http://site.icu-project.org/download/55
  • CLDR 27 changelog: http://cldr.unicode.org/index/downloads/cldr-27
• Retarget the file exclusions from ICU4C 54 to ICU4C 55
  • (improves on-disk footprint on some platforms)

Originally-Fixes: nodejs/node#2292
Original-PR-URL: nodejs/node#2293

@orangemocha @joaocgreis or anyone any comments on the rebase?

[jasnell]

LGTM!

[joaocgreis]

LGTM, but the PR-URL is corrupted. It can be simply removed, will be added by Jenkins and would get duplicated.

[srl295]

@joaocgreis it's just a placeholder (hash snowman), I didn't have a PR # when it landed. I've fixed this in d9eedaf - sorry for the noise.

[joaocgreis]

@srl295 Unless you plan to land this manually, only the Fixes: line is needed. Jenkins will add the PR-URL and Reviewed-By lines.

[srl295]

@joaocgreis ok… I was going to land it manually, but I don't have to. I removed all but Fixes:. What's next?

[joaocgreis]

That's it! LGTM. Now just go to https://jenkins-iojs.nodesource.com/job/node-accept-pull-request/ , start a new build with parameters, fill the PR_ID and REVIEWED_BY fields. Note that apply changes is on by default. When it's done, close this with Landed in ####. and the issue with Fixed by ####., with the final commit hash. I can take care of this if you want :)

[srl295]

@joaocgreis thanks. I requested access, probably better to learn it.

[orangemocha]

@srl295 I had sent you an email with your Jenkins account info a few weeks back. Now I resent it. Let me know if you didn't get it.

[srl295]

OK, the build is off and running, thanks all.

[joaocgreis]

@srl295 The SmartOS machines were broken for a few hours, my fault, and the CI job failed, sorry. I started it again, exactly the same parameters: https://jenkins-iojs.nodesource.com/job/node-accept-pull-request/29/

[srl295]

@joaocgreis +1 - at least I found the right button!

[joaocgreis]

Landed in 15030f2.

@srl295 All done, thanks!