Merge pull request #238 from Mellvik/netdrivers

[kernel, net] ne2k driver update: more fixes, optimizations and adjustments

[kernel,net] ne2k driver rewrite, now completely buffered

Merge pull request #237 from Mellvik/netdrivers

[kernel] Remove most irq blocking, add early EOI in ne2k driver

Merge pull request #236 from Mellvik/serial

[kernel] Fix compile problem in serial driver

Merge pull request #235 from Mellvik/kernel

[cmd] Add XON/XOFF support + RTS/DTR manipulation to miniterm

[kernel] Completes implementation of serial flow control

[kernel] Reinstate GETJIFFIES ioctl in mem driver to get time command working (again)

[kernel] Cleanups and edits

Merge pull request #234 from Mellvik/kernel

[kernel] Implement split tophalf/bottomhalf interrupt structure in TLVC

Merge pull request #233 from Mellvik/kernel