Add 'plugins/struts2-dojo-plugin/' from commit '6798e221f93edef3c1165c0ab2085e039f85001c'

git-subtree-dir: plugins/struts2-dojo-plugin
git-subtree-mainline: 484b6350efd3841faed0bd77586c17276e4bd93c
git-subtree-split: 6798e221f93edef3c1165c0ab2085e039f85001c