Japanese corrections
Move 実は pane down and only fade in subitems
No longer have to fade in filesystems...
Move filesystems div up to align with 中核 better
Improve presentation of the 中核 pane

* Separate は and これだけ！ and lay them out independently.
* Delay the fade in of これだけ！ a little bit.
* Separate treatment of fade in for h1 and h2 elements
  (I may choose to leave 中核 in the background during the previous pane
   rather than fading in)
Add lead-in to objects bit
Some small corrections

Cleaned up cat-file syntax and clarified the use of the term "SHA1" in
place of "name"
First pass at objects stuff
Deleted pointless dummy slide