Ship src/report/jqplot/jquery.js in the tarball.

The tarball contains jquery.min.js, which is a minified version of jquery.js.
The minified version is not the preferred form of modification, so it is not
source code, and jquery.js must also be included.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23760 57a11ea4-9604-0410-9ed3-97b8803252fd