-- multi.csv: disable unstable tests
Simplified generic network protocol.
Removed reassembling and fragmentation related functions.
Added const where required to avoid using const_cast.
+++ for testing: exclude registerProtocol messages from fingerprints
Merged ipv6In and ipv6Out gates into ipIn and ipOut.

There are network layers for ipv4, ipv6, generic network protocols.
Multi network layer is also available.
+++ for testing: re-enable registerprotocol messages
Renamed functions to be more consistent with others.
-- IPv4NodeConfigurator fix: routingtable access
Added GenericNetworkConfigurator to configure GenericRoutingTables with static routes.
Fixed compilation when all features are turned off.
--- fixed joinMulticastGroup for IPv6 (nop, TODO)
Added features for new routing protocols.
Renamed *AddressPolicy to *AddressType.
Comments.
Extended DYMO example with new configurations that show what happens when nodes are turned on/off
--- fingerprints changed... REVISE IT
Added backward compatible EV macros for the new logging API.
logging: Replaced 'ev <<' with 'EV <<'.
logging: Replaced 'ev <<' with 'EV_S <<' where this pointer is not available.
logging: Removed obsolete definition for EV.