Libprotoident 2.0.15

• Adds 5 new protocols
• Adds a new category for industrial control systems
• Improves the rules for another 6 existing protocols
• Adds 2 new API methods (lpi_get_category_by_protocol() and lpi_get_category_by_name())

Full details can be found at https://github.com/wanduow/libprotoident/wiki/ChangeLog