import IB's TWS API 9.69-1
update ChangeLog-IB (beta notes 9.69)
import IB's TWS API 9.69-2
Merge branch 'ib_orig' into ib_orig_plus

* ib_orig:
  import IB's TWS API 9.69-2
  update ChangeLog-IB (beta notes 9.69)
  import IB's TWS API 9.69-1
import IB's TWS API 9.69-3
update ChangeLog-IB
Merge branch 'ib_orig' into ib_orig_plus

* ib_orig:
  update ChangeLog-IB
  import IB's TWS API 9.69-3
add missing namespace IB to new files

This is cherry-picked from 65d65cec ... should have been commited
to this branch ib_orig_plus
ChangeLog, correct headline 0.5.0
Merge branch 'ib_orig_plus' into next

* ib_orig_plus:
  add missing namespace IB to new files
  update ChangeLog-IB
  import IB's TWS API 9.69-3
  import IB's TWS API 9.69-2
  update ChangeLog-IB (beta notes 9.69)
  import IB's TWS API 9.69-1

Conflicts:
	PosixSocketClient/src/EPosixClientSocket.cpp
	PosixSocketClient/src/EPosixClientSocketPlatform.h