Deck class name and logic changes.

[mhulse]

.deck1, .deck2, .deck3, .deck4, .deck5, .deck6

... become:

.sh6, .sh5, .sh4, .sh3, .sh2, .sh1

Reasoning:

Makes more sense logically to match an h2 or .h2 heading class to a .sh3 subheading. Before this change, the decks were using a reverse numbering system when compared to headings. Also, I changed "deck" to "sh" (SubHead) as h* and sh* seem to fit better.

[mhulse]

Btw, the h*, .h* and .sh* classes could mostly be combined, like:

h1, .h1, .sh1 { ... }
h2, .h2, .sh2 { ... }
...

[mhulse]

Done. Still need to clean up the Caché templates (remove old class names) but things are better now. Done.