ref #8543 testing for erroneous usage of the dafault footnoteListKey
ref #8543 further harmonizing footnote functions
ref #8543 refactoring cdm_footnotes to normal function
moving content of folder 7.x up to the repository root
reorganizing drupal sub repository: sparate folders per version 5.x, 6.x & 7.x
css chages for footnotes list, related with ticket #1984
refactoring i.e. splitting the themes file
#1484 & #1483 : implement footnote framework into data portal & display multiple references for distributions as footnotes in portal