[orber] Add possibilty to configure orber to run in both IPv4 and IPv6
[orber] Remove a define of ORBVSN when compiling orbers erlang modules
[orber] Remove unused file corba_request.erl
[orber] Update testcases and fixed some minor faults
[orber] Update documentation and fix testcase for IPv4/IPv6
Include the cause when raising a new IOException
Fix a minor typo in system_principles/versions.xml
Fix minor grammatical errors in epmd docs

Small grammar changes.
kernel: When doing an fdopen we now also bind the fd to the specified addr/port
erts: Fix inet close on prebound fds

Inet close must remove fd from select/poll without closing the fd.
Rewrite agent configuration parsing
wip
Fix default behaviour for legacy fdopen

Update testcase for gen_udp:open/2 with option fd
Merge branch 'lukas/kernel/bind_with_fdopen/OTP-12061' into maint-r16

* lukas/kernel/bind_with_fdopen/OTP-12061:
  Fix default behaviour for legacy fdopen
  erts: Fix inet close on prebound fds
  kernel: When doing an fdopen we now also bind the fd to the specified addr/port
Update release notes
Merge branch 'tuncer/system_principles-versions-typo' into maint

* tuncer/system_principles-versions-typo:
  Fix a minor typo in system_principles/versions.xml
Merge branch 'maint-r16' into maint

Conflicts:
	erts/doc/src/notes.xml
	erts/preloaded/ebin/prim_inet.beam
	erts/vsn.mk
	lib/kernel/doc/src/notes.xml
	lib/kernel/vsn.mk
Merge branch 'garret-smith/gs-jinterface-exceptions' into maint

OTP-12075

* garret-smith/gs-jinterface-exceptions:
  Include the cause when raising a new IOException
fix xml file merge messup
wip-all-regression-tests-but-one-manager