http://issues.liferay.com/browse/LRDOCS-753 and http://issues.liferay.com/browse/LRDOCS-756

http://issues.liferay.com/browse/LRDOCS-753 and http://issues.liferay.com/browse/LRDOCS-756

Updated the User Guide's chapters on User Management and the Configuration section of the Control Panel to 6.2. Reorganized a few sections including Authentication options (LDAP, etc.), Custom Fields, and User Monitoring to reflect the updates between 6.1 and 6.2. Updated screenshots, explanations, and instructions.