v9.1

• added: the option to generate username based on email during registration
• added: composer support
• added: added social input fields for Twitter, Facebook and LinkedIn
• fixed: avoid use of deprecated Elgg add_to_river() function
• fixed: correctly show categories when admin changed profile type
• fixed: profile edit js function called before lib is loaded
• fixed: set correct class for categories when using profile types
• fixed: group profile edit isn't sticky
• fixed: php type hint warning
• changed: improved layout of profile field actions
• changed: some admin css cleanup
• removed: removed the restoreForm css