patch 7.4.1376

Problem:    ch_setoptions() cannot set all options.
Solution:   Support more options.

patch 7.4.1375

Problem:    Still some Win16 code.
Solution:   Remove FEAT_GUI_W16.(Hirohito Higashi)

patch 7.4.1374

Problem:    Channel test hangs on MS-Windows.
Solution:   Disable the ch_read() that is supposed to time out.

patch 7.4.1373

Problem:    Calling a Vim function over a channel requires turning the
            arguments into a string.
Solution:   Add the "call" command. (Damien)  Also merge "expr" and "eval"
            into one.

patch 7.4.1372

Problem:    channel read implementation is incomplete.
Solution:   Add ch_read() and options for ch_readraw().

patch 7.4.1371

Problem:    X11 GUI callbacks don't specify the part of the channel.
Solution:   Pass the fd instead of the channel ID.

patch 7.4.1370

Problem:    The Python test script may keep on running.
Solution:   Join the threads. (Yasuhiro Matsumoto)

patch 7.4.1369

Problem:    Channels don't have a queue for stderr.
Solution:   Have a queue for each part of the channel.

patch 7.4.1368

Problem:    One more Win16 file remains.
Solution:   Delete it.

patch 7.4.1367

Problem:    Compiler warning for unreachable code.
Solution:   Remove a "break". (Danek Duvall)