xwiki-debug-eclipse broken by new concatenated js/css files

Since https://github.com/xwiki/xwiki-platform/commit/a679063fe4fec5509b873cc250ec16db739bae25 xwiki-debug-eclipse is pretty much unusable. The issue is that javascript.vm espect a generated files which is not generated by this project. That's mean that almost all js is broken in an XWiki running in xwiki-debug-eclipse.

The workaround is to modify javascript.vm to load the "real" files instead of the concatenated ones.