On init, select root dir
fmAction added to allow movement around file manager with
up,down,left,right and enter
load param in openCloseDir is now always the opposite of what it was
before. Function also removes node if it was UL, so we don't have hidden
elems still there
Refactored tag wrapper section
Added conditions to move between file and content areas
(CTRL+Alt+left/right)
Space is no longer the key to refocuson content area