Data tools plug-ins have lots of warnings that need to be addressed

I cleaned up some of the warnings, but there are 3 types left that John Doyle needs to address:

1) The most prevalent warnings are about strings that haven't been externalized in the code, the plugin.xml, and the MANIFEST.MF. All of these need to be internationalized or, if not applicable, marked with NLS tags

2) A couple of the attributes specified in the plugin.xml have been deprecated.

3) There are 2 warnings about API baselines not being set on the project. Not sure how or why the API tooling nature got set on these projects, but I removed the nature and builders from the .projects files, along with the .externalBuilder... folders, but still see the warnings for some reason.