[Proposal] Internationalizing XWiki Applications

Hi, Here's my proposal for internationalizing XWiki apps. The idea is to propose several solutions for XWiki apps writers: * Use case 1: I have lots of text on my page - solution: use XWiki's mechanism for translating page by creating several editions of the page in the different languages * Use case 2: I want translation resources for my application only and I'd like to share resources between pages - solution: use: $msg("mykey", "MySpace.MyTranslationDocForThisApplication") - MySpace.MyTranslationDocForThisApplication is a standard document to which a XWiki.PropertiesClass object is attached - It'll search first in that doc's PropertiesClass and if not found in XWiki's registered document bundles and if not there in XWiki's static resource bundle files * Use case 3: I want translation resources only for a given page - solution: use: $msg("mykey", $doc) - You'll need to have attached a PropertieClass object to the page where $msg is used - It'll search first in that object and if not found in XWiki's registered document bundles and if not there in XWiki's static resource bundle files * Use case 4: I want to have a global translation resources for all my apps in the wiki - solution: use: $msg("mykey") - You'll need to have created ad registered resource bundle documents in the Wiki preferences - It'll search first in XWiki's registered document bundles and if not there in XWiki's static resource bundle files Implementation details: * Add XWikiMessageTool.get(String, String) API * Add XWiki.PropertiesClass class in XE in the Administration Application + a class sheet for presenting the properties nicely WDYT? Thanks -Vincent