Simpify handbook header
Rename 'Examples' to 'User Contributed Notes' in an appropriate fashion wherever present
Bump CSS version
Remove handbook name header
Explicitly exclude hooks when determining whether to display the '(Required)' text for a parameter description.

Hook parameters can't be "optional" or "required" per se.
Merge branch 'master' into requires
Merge pull request #24 from DrewAPicture/requires

Explicitly exclude hooks when determining whether to display the '(Required)' text for a param description
fix the index.php template so that the initial hello world post is aligned correctly
fix content being pushed down by the table of contents, and a lack of lower margin on sub headings
compile scss changes
the main ul in the toc has padding, dont pass on the right in child lists
balance the breadcrumbs so the bottom and top spacing are equal
new table styling
fix an issue with sidebar menus when a page is active, but all its sub items are also highlighted as active
Merge pull request #26 from Tarendai/index_php_alignment

Fix markup for proper alignment of content in index.php
Merge pull request #27 from Tarendai/toc_headings

Topics box UI improvements:

* Fix the wrapping of text around the Topics box (prevent main body text from starting below the box)
* Fix Topics right padding for embedded lists
* Add some margin-bottom to headings
Merge pull request #29 from Tarendai/active_menu_highlight_fix

Fix the styling of links in the sidebar when a primary page is selected
Merge pull request #28 from Tarendai/table_styling

Improve table styling in handbook content
Auto-link @username references on credits pages
Ensure there is content string before checking first character