0.1.1 -> 0.2.0
added support for kernel 2.6.x
fixed small bugs

0.1.1 -> 0.1.2
fixed division by zero bug, if no swapfile available (thanks Joo Paulo F Farias)

0.1.0 -> 0.1.1
added mem correction option (-m) // used=total-free-cached-buffers
patched width calc at r_io and w_io 
