01-what-is-liferay: Update images for 6.2
LRDOCS-678: Add description for new "Allow Manual Membership Management" checkbox
Added new 6.2 options for Site Settings menu
LRDOCS-583: Introduce new page interface and edit each interface's navigation instructions
Combined two similar Site Settings sections into one
LRDOCS-583: Update new 6.2 page types
LRDOCS-648: Update logo docs; also modified site export instructions
LRDOCS-648: Document Edit Page interface and modify Site Settings menu description
LRDOCS-484: Added some minor details to Site Settings for site hierarchy.
LRDOCS-648: Add new "Page" interface and describe how to add pages for 6.2
LRDOCS-583: Updated various Web Content sections for 6.2
Updated 02-web-content-management images for 6.2