*Removed Linux backup files that accidentally got committed.
*Removed the dysfunctional LWIP v1.3.1 port from the PS2SDK, since it is obsolete anyway. The SMAP driver must be also modified to support it's different structures, which isn't done.
*Fixed the STOP function of the SMAP driver, and replaced the hardcoded DMA direction values with definitions from dmacman.h.
*Renamed iop/tcpip/ps2ip141 to ps2ip141-netman, to make it more obvious that it is has to be used with NETMAN. Mentioned how the IOP modules should be loaded within its README file.
*Modified iop/tcpip/ps2ip141 to make its syntax like the original PS2SMAP driver's syntax. It'll now default to using 192.168.0.80 as its IP address if none was specified (Like PS2SMAP does).