rename chunkFilename arguments, move chunkFilenameAt nearby
rename chunkFilename arguments, move chunkFilenameAt nearby

ahh2131/mchisel,codewarrior0/pymclevel,ahh2131/mchisel,mcedit/pymclevel,mcedit/pymclevel,arruda/pymclevel,arruda/pymclevel,codewarrior0/pymclevel