statistic: round up percentage values

Also fix a potential memory leak; only call new PieSlice()
when we really found a new value.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
cpu: fix wrong statistics with overclocked values

Our overclock module needs two addresses to display the current
cpu time in state correctly. If those addresses aren't set correctly,
every cpu stats reading tool will fail.

Solving this by searching for the right addresses (theoretically they
could be changed during each reboot, but this is very unlikely) and
then insert them into the overclock module.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
translation: fix a few translations

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
statistic: add tutorial overview

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
aero: optimize path execution a bit

Also cleaning up a few bits and bytes here and there.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>