comment-69a

- Whitespace and case as specified by XML datatypes and RELAX NG
  schema.
- Added references.
comment-76

- Fix using the proposed text, but adapted to the current text.
comment-79

- Add reference of wikipedia's skip list.
comment-83

- Add reference to section 6.4.1.
comment-118

- Converted into definition list.
Merge pull request #109 from petithug/comment-79

comment-79
fix up reference formatting
Merge pull request #106 from petithug/comment-69a

comment-69a
Merge pull request #108 from petithug/comment-76

comment-76
Merge pull request #111 from petithug/comment-83

comment-83
fix formatting
fix for comment-86
fix for comment-88
fix for comment-121
Merge pull request #124 from petithug/comment-118

comment-118