Ensure that the file end is updated in the original file extent if it has been overwritten through a micro log operation.
Merge pull request #582 from nvt/coffee-file-end-fix

Make sure that Coffee updates the file end after a micro log write.
Declare and Implement generic ICMPv6 handler management
Replace old switch-based ICMPv6 type/code management
Register generic handlers for ICMPv6 Echo Request / Reply
Register generic ICMPv6 handlers for IPv6 ND
Register generic ICMPv6 handlers for RPL