Merge branch 'ib_orig_plus' into next

* ib_orig_plus:
  fix merge mistake, namespace IB
  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