RIP: work in progress
lwIP,NSC: follow networklayer changes
RIP: follow networklayer changes
RIP: use private routing table to store rip ruotes
RIP: simple example
RIP: listen interface/route change events

+ request processing searches only RIP routes
+ EV log
+ compute packet length
RIP: fixes
RIP fix: non-local next hop was added to the routing table
RIP fix: update out interface of the route
RIP: dynamic example
Address: add getLinkLocalRIPRoutersMulticastAddress()
RIP: cosmetics
RoutingTable: notifications do not depend on the routing table's type (IPv4/IPv6/Generic)

note: RoutingTableRecorder now dumps the prefixLength of the route instead of the netmask
RIP: use new notifications about route changes
Merge remote-tracking branch 'remotes/origin/topic/rip' into topic/networkprotocol

Conflicts:
	src/networklayer/common/IAddressPolicy.h
	src/nodes/inet/NodeBase.ned
	src/transport/tcp_lwip/lwip/include/ipv4/lwip/ip.h
RIP: add RIPRouter
Fixed IP protocol IDs in registration command.
RIP: followed network layer changes.
Don't send registration command if unconnected.