Updates the help manual

[plieblang]

• Each page now has at least some content
• Commented out all the TODOs for cleanliness' sake
• Updated the changelog up to version 0.10.1

Refs #24 and #149

[z64555]

I did a quick skim through and things look good for the most part. I didn't check if the hyperlink changes worked, though.

[z64555]

Ok, all links check out, thanks much.