Sprint 6 5 footnote plugin

First rough version of footnote plugin.
I get the following error:

    Tracing dependencies for: aloha
    Error: ENOENT, no such file or directory '/home/ewald/programming/editor-sprint-june-2014/aloha-editor/target/build-profile-with-oer/rjs-output/lib/figure/figure-plugin.js'
    In module tree:
        assorted/assorted-plugin
          assorted/image

    Error: Error: ENOENT, no such file or directory '/home/ewald/programming/editor-sprint-june-2014/aloha-editor/target/build-profile-with-oer/rjs-output/lib/figure/figure-plugin.js'
    In module tree:
        assorted/assorted-plugin
          assorted/image

        at Object.fs.openSync (fs.js:427:18)