EDIT

ref #8543 replacing theme_cdm_footnote_key() by cdm_footnote_key()

ref #8543 removing unused footnote related theme functions

ref #8543 refactoring cdm_footnotes to normal function

ref #4372 adapting media gallery to zen theme

solving problems with multiple distributions per tree node

ref #8543 refactoring cdm_annotations to normal function

ref #8543 refactoring theme_cdm_footnotes to normal function

ref #8543 refactoring theme_cdm_annotation_footnotes to normal function - 2

ref #8543 refactoring theme_cdm_annotation_footnotes to normal function

fixing uninitialized variable