This commit allows setupMaster() to configure the stdio channels
for worker processes.
Refs: nodejs/node-v0.x-archive#5727
Refs: #7811
PR-URL: #7838
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Notable changes:
* build: zlib symbols and additional OpenSSL symbols are now exposed on Windows platforms. (Alex Hultman) #7983 and #7576
* child_process, cluster: Forked child processes and cluster workers now support stdio configuration. (Colin Ihrig) #7811 and #7838
* fs: fs.ReadStream now exposes the number of bytes it has read so far. (Linus Unnebäck) #7942
* repl: The REPL now supports editor mode. (Prince J Wesley) #7275
* util: inspect() can now be configured globally using util.inspect.defaultOptions. (Roman Reiss) #8013
Refs: #8020
PR-URL: #8070

Notable changes:
* build: zlib symbols and additional OpenSSL symbols are now exposed on Windows platforms. (Alex Hultman) #7983 and #7576
* child_process, cluster: Forked child processes and cluster workers now support stdio configuration. (Colin Ihrig) #7811 and #7838
* child_process: argv[0] can now be set to arbitrary values in spawned processes. (Pat Pannuto) #7696
* fs: fs.ReadStream now exposes the number of bytes it has read so far. (Linus Unnebäck) #7942
* repl: The REPL now supports editor mode. (Prince J Wesley) #7275
* util: inspect() can now be configured globally using util.inspect.defaultOptions. (Roman Reiss) #8013
Refs: #8020
PR-URL: #8070

Notable changes:
* build: zlib symbols and additional OpenSSL symbols are now exposed on Windows platforms. (Alex Hultman) #7983 and #7576
* child_process, cluster: Forked child processes and cluster workers now support stdio configuration. (Colin Ihrig) #7811 and #7838
* child_process: argv[0] can now be set to arbitrary values in spawned processes. (Pat Pannuto) #7696
* fs: fs.ReadStream now exposes the number of bytes it has read so far. (Linus Unnebäck) #7942
* repl: The REPL now supports editor mode. (Prince J Wesley) #7275
* util: inspect() can now be configured globally using util.inspect.defaultOptions. (Roman Reiss) #8013
Refs: #8020
PR-URL: #8070

Notable changes:
* build: zlib symbols and additional OpenSSL symbols are now exposed on Windows platforms. (Alex Hultman) nodejs#7983 and nodejs#7576
* child_process, cluster: Forked child processes and cluster workers now support stdio configuration. (Colin Ihrig) nodejs#7811 and nodejs#7838
* child_process: argv[0] can now be set to arbitrary values in spawned processes. (Pat Pannuto) nodejs#7696
* fs: fs.ReadStream now exposes the number of bytes it has read so far. (Linus Unnebäck) nodejs#7942
* repl: The REPL now supports editor mode. (Prince J Wesley) nodejs#7275
* util: inspect() can now be configured globally using util.inspect.defaultOptions. (Roman Reiss) nodejs#8013
Refs: nodejs#8020
PR-URL: nodejs#8070