Test if we have a nextSibling before determining a tagName. This is so
if we have a dir with only subdirs (ie, no files) and the last subdir is
empty, there will be no UL list (which we're looking to maybe remove).
No longer need to consider depths as we are getting folder/file listings
for 1 branch at a time. For this reason, the opening UL will always be
block and the closing one shown when it's the last item and $GET
location is available (ie, not the root).
We don't want to have the DIV tag as part of the nest, so tuck the start
& end tags into the if $_GET location statements, so they only appear
with get-branch and never get injected into the tree
Instead of not showing perms span tags, show them with blank content
Due to format changes, we need to change the slice range to 28 and -7
