Added ability to have kernels that have names starting 'white'.
Added ability to have kernels that have names starting 'white'.

SheffieldML/forkedGPmat,SheffieldML/forkedGPmat,TianpeiLuke/GPmat,TianpeiLuke/GPmat,SheffieldML/GPmat,SheffieldML/GPmat,TianpeiLuke/GPmat,SheffieldML/GPmat,TianpeiLuke/GPmat,SheffieldML/forkedGPmat,TianpeiLuke/GPmat,SheffieldML/forkedGPmat,SheffieldML/GPmat,SheffieldML/forkedGPmat,SheffieldML/GPmat,SheffieldML/forkedGPmat,SheffieldML/GPmat,TianpeiLuke/GPmat