OperationalBase: do not call handleShutdown() from finish()
pim: PIM-DM and PIM-SM implementation
pim: added examples
PIM: added fingerprint tests
PIM: added statistical tests
IGMPv3: added implementation
IGMP: added examples
IGMP: added fingerprint tests
IGMPv3: added module tests
pim, igmp: moved files to new inet structure
pim, igmp: fullpath includes
pim, igmp: added inet namespace
pim: NED fixes (dir changes, param name)
pim, igmp: parameter was renamed: forwardMulticast -> multicastForwarding
igmp: NED: fixes for changed directory structure
pim: bugfix: parsimUnpack: 'break' was missed
IGMPTester: EV out changes
igmpv3 module tests: changes for omnet4
pim, igmp: fingerprints changed after topic rebased

because:
 - MACRelayUnitNP replaced to MACRelayUnit/Ieee8021dRelay
 - ???
pim, igmp: codestyle