Reorder code (why bother z-index?)
Reorder more (header after / higher-z than browser)
Simplify breadcrumb trail href generation
Add verify root path (otherwise default to /)
Reorganize root mismatch model
*Further* fixes and rewrites for path checks and generation
Remove one line of whitespace (surprisingly trivial commit)
Reorder code again (z-index is probably better practice)
Comment to remove whitespace between list items
Add thumbnail div in list
Add thumbnail classes (by file extension)
Remove CSS style a/b toggle, add folder thumbnail class