Added a MessageSource manager, which will load arbitrary message sources on the fly. It is used to access the tool's language files from the authoring code, but it could be used by any part of LAMS to access a resource file as long as the path to the file is known.
Added greater flexibility to the language files for the tool deployment - the deployment configuration now specfies the package into which the file(s) shoul be placed. For tools this may be their normal package, or a tool signature directory. For non-tool activities this will be a artificial name.
plenty work for basic structure and authoring page:1.ant build2.add many fields to model class3. finish basic logic of authoring init page4. copy lams tag into authoring page5. IMS download method.
