Separate data that is constant across all locales in a build into a
LocaleInfoImpl_shared (which contains the native display names and
available locales) and the remainder in a per-locale source file.

Patch by: jat
Review by: scottb


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@5092 8db76d5a-ed1c-0410-87a9-c151d255dfc7