based on -Wconversion warnings, fixing some long-standing confusion about which types to use associated with zlib output, mainly that sizeChunk should be unsigned int and not size_t, given that zlib is apparently limited to working with 32-bit-worth of data at a time (and, airSanity ensures that ints are 32-bits)
based on -Wconversion warnings, fixing some long-standing confusion about which types to use associated with zlib output, mainly that sizeChunk should be unsigned int and not size_t, given that zlib is apparently limited to working with 32-bit-worth of data at a time (and, airSanity ensures that ints are 32-bits)

git-svn-id: 9e9401559e51101c165cdce4d49b411eb20436ed@5699 3d70eeeb-363e-0410-a505-8a46323a89f2

BRAINSia/teem,Slicer/teem,Slicer/teem,Slicer/teem,BRAINSia/teem,Slicer/teem,BRAINSia/teem,Slicer/teem,BRAINSia/teem,BRAINSia/teem