I was too aggressive in trimming the data and dropped the display
names for languages that Chromium needs (for non-UI languages
that are in the A-L list). It's not my intention (the comment in
trim_data.sh said one thing, but the code did another). 

Besides, add Norweigian (nb) and Malay (ms) locale data that were not 
included by mistake.

Also update trim_data.sh script NOT to drop 'ALIAS' lines which are
used to indicate that a given locale is an alias to another locale.
That also required adding ro_MD.txt (null locale which mo.txt is 
aliased to).

The above three adds about 110kB to the icu data (from 10.3MB to 10.4MB).

Also update the pre-built icu data files for Linux, Mac and Windows.
The Android data will be updated in a follow-up patch.

BUG=132145
TEST=When ICU is rolled, unit_tests:ExtensionL10* pass.
TBR=mark

Review URL: https://codereview.chromium.org/264973016

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/icu52@268285 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Add a shell script to trim the ICU data further : trim_data.sh along with
locale list files.  The script does the following:

1. Remove the display names of languages NOT listed in Chrome's Accept-Language
   list. (800kB)
2. Minimize the locale data for locales listed in the A-L list that are
   not a UI locale in Chrome. For those locales, exemplar characters,
   the display name in the native language and layout direction are included.
   (640kB)
3. Filter the region data to drop numeric region display names other than 419
   (Latin-America). (50kB)
4. Filter the currency data (display name and plurals) for historic currencies.
   (200kB)

This CL also checks in icudtl.dat (source/data/in) and
icudt_dat.S (mac and linux). Note that I dropped '52' (the version number)
in the assembly source file name and icu.gyp was adjusted accordingly.

With all these changes, icudtl.dat is ~ 800kB larger than that in ICU 4.6.
The 7z compression (as used by the installer) makes the size difference
go down to ~ 130kB.

BUG=132145
TEST=The icudtl.dat (uncompressed) is about 10.7MB instead of 12.4MB without this CL.
R=mark@chromium.org

Review URL: https://codereview.chromium.org/239543018

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/icu52@264811 4ff67af0-8c30-449e-8e8b-ad334ec8d88c