iterator change

[Casper Boemann]

Hi

I would like to do some name changes to the iterators.

it concerns the value getters. Today we have:

KisPixel value()
operator KisPixel()
KisPixelRO oldValue()
operator Q_UINT8*()
Q_UINT * oldValue()

I would like to remove the operator variants. For KisPixel we already have the 
value() equivalent. and for Q_UINT8 * I'll make one

I'll also change the names so value becomes pixel and Q_UINT8* becomes rawData

both with oldXXX variants

So afterwards we'll have:

KisPixel pixel()
KisPixelRO oldPixel()
Q_UINT8 *rawData()
Q_UINT8 *oldRawData()

-- 
best regards / venlig hilsen
Casper Boemann