Fixes to footer layout and misspelled i18n-text IDs ('structureal' => 'structural')
Removing errant whitespace (underlined link) around the "powered by" logos in footer.
Restoring whitespace between i18n strings in footer.
Fix to force footer to bottom of page (clear all floating blocks), in case of malformed HTML in the page above.
Cleanup of spacing in powered-by area of footer
Merge remote-tracking branch 'origin/trello-34-jima-footer' into dryad-staging