-The first write on ouputChannel may fail
-Subsequent write calls are also prone to failure
-Reopening the channel on failure should solve this problem
-These are mostly copyright and consistency issues
-On io_mac.h/m prepended "based on io_mac.h/m from WiiC," to "written by: Gabiele Randelli"
and specified the files as part of wiiuse instead
of wiiC.
-On wiiuse.h and wiiuse_internal.h gave credit to WiiC
and Gabiele Randelli for Mac-specific class codes
and wiimote_t members
-Used io_mac.h/.m from wiic and added them to CMakeLists
-Define WIIUSE_MAC on wiiuse.h and wiiuse_internal.h
-Implemented wiiuse_poll when WIIUSE_MAC is defined
-Added Mac-specific includes to wiiuse.h and wiiuse_internal.h
-Added Mac-specific members to wiimote_t on wiiuse.h
-Added Mac-specific WM_DEV_CLASS definitions to wiiuse_internal.h
-Modified wiiuse_poll for use with Mac
-Added init and cleanup functions to io_mac.m
