August 4th, 2010

* Further improve startup performance
  - Preload no country specific metadata at startup.
  - Stop creating the file containing mapping from country calling code to region code
    and loading it at startup; instead, do the initialization in PhoneNumberUtil.

July 31th, 2010

* Improve startup performance
  - Separate generated metadata binary file to one file per region
  - Preload US at start up, and load other region at the time when needed
  - Create a file containing mapping from country calling code to region code,
    and load it at startup
  - Same change also applied to unittests

July 30th, 2010

* Metadata change:
  - new country: TL
  - update to existing country: AZ, CN, FR, GH, JO, LA, PG, PK, QA, SZ, UA, VN

* Code improvement
  - China local number formatting for AsYouTypeFormatter
  - improve extension parsing to handle number in the form of +1 (645) 123 1234 ext. 910#