manetrouting: aodv: fixed aodv msg descriptors: uses ManetAddress instead uint128
uint128: unused, removed
IPvXAddressResolver: bugfix for parse protocol in address
doc: updated what's new and changelogs.
doc: tagged changelogs with v2.1.0
renamed ospf fail tests
build system: updated makefiles
Upated TCP NSC docs and patch
doc: updated NED index page with InternetCloud
doc: updated NED doc to get rid of unresolved links.
TCPSessionApp: fixed signal name and removed non-exisiting signal def.
3rdparty/README: English fixes; mention LD_LIBRARY_PATH
XMLUtils: fix
dhcp: fix typos
const fixes (in OMNeT++ 5.0, check_and_cast<> no longer silently discards const modifier)

TODO maybe introduce a check_and_const_cast<> macro as shortcut for
const_cast<T*>(check_and_cast<const T*>(p)) ?
IPv4NetworkConfigurator: added @groups to <interface>
bgp examples: added dummy configurator module to BGPOpen, and updated fingerprint accordingly
bgp examples: irt files replaced with IPv4NetworkConfigurator XML
examples: remove remaining, unused irt files in some examples

ospfv2/fulltest
inet/tcpwindowscale
rtp/unicast
dhcp/wlan: added dummy module as placeholder for configurator