The code is adapted from Plan 9's import(4); this allows us to speak that protocol. We don't currently support AAN (in the works) or TLS/SSL. Thanks to David for help with the man page, testing, and development. R=0intro, rsc CC=plan9port.codebot http://codereview.appspot.com/6458100

If the mouse was in the tag of the old window, it was most likely pointing at Del. If bringing up a new window from below and not moving the mouse somewhere else, adjust it so that it ends up pointing at Del in the replacement window's tag too. This makes it easy to Del a sequence of windows in a column, from top to bottom. http://www.youtube.com/watch?v=ET8w6RT6u5M R=r http://codereview.appspot.com/6558047

Don't want to require X11 during OS X build anymore. R=rsc http://codereview.appspot.com/6531045

R=r http://codereview.appspot.com/6488137

R=rsc http://codereview.appspot.com/6501137

In some situations, gethostbyname can return an empty address list. R=rsc http://codereview.appspot.com/6443097

Change is to handle FUSE_FORGET in main loop instead of separate thread for each as 10s of thousands can come in at once. Fixes issue 104. R=0intro, rsc http://codereview.appspot.com/6498081

R=rsc CC=plan9port.codebot http://codereview.appspot.com/6346079

Not all systems have ss_len, and we've never set it before. R=rsc http://codereview.appspot.com/6497102

R=rsc http://codereview.appspot.com/6503093

R=rsc http://codereview.appspot.com/6495109

On some systems, the third argument of connect() and bind() is expected to be the length of the address family instead of the length of the sockaddr structure. R=rsc http://codereview.appspot.com/6489072

The v9fs usage is documented on https://www.kernel.org/doc/Documentation/filesystems/9p.txt R=rsc http://codereview.appspot.com/6445072

R=rsc http://codereview.appspot.com/6445076

R=rsc http://codereview.appspot.com/6457077