7u4 drop10: Mac OS X installer localization

This is a bug to keep track of the work to integrate the translated strings into Mac OS X JDK installer.

We have translated the following file:
install/make/installer/bundles/macosx/resources/jdk_installer.properties

There are 3 issues reported on pseudo-l10n testing to be addressed:
1. The installer dialog message that came from apple are translated into many languages. Within the dialogs, there are some strings that actually came from JDK installer that's planned to be translated into JDK languages (Japanese, S.Chinese). How to handle the discrepency? Translate the JDK installer-specific messages into all JRE locales? or is there a way to un-translate the dialog messages that came from apple?

2. The JDK installer-specific message still shows in English (doesn't show pseudo-localized character).

3. There is a background image on the dmg installer that says "double click to install". This is in English. We need to figure out how to get this translated (or alternatively, eliminate this background image, apple's jdk installer didn't include the background image).