fix missing STBI_MALLOC

stb_image.h

@@ -1,4 +1,4 @@
-/* stb_image - v2.00 - public domain image loader - http://nothings.org/stb_image.h
+/* stb_image - v2.00b - public domain image loader - http://nothings.org/stb_image.h
                                      no warranty implied; use at your own risk
 
    Do this:
@@ -143,6 +143,7 @@
 
 
    Latest revision history:
+      2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG
       2.00  (2014-12-25) optimize JPEG, including x86 SSE2 & ARM NEON SIMD
                          progressive JPEG
                          PGM/PPM support
@@ -2639,7 +2640,7 @@ static int stbi__process_frame_header(stbi__jpeg *z, int scan)
       if (z->progressive) {
          z->img_comp[i].coeff_w = (z->img_comp[i].w2 + 7) >> 3;
          z->img_comp[i].coeff_h = (z->img_comp[i].h2 + 7) >> 3;
-         z->img_comp[i].raw_coeff = malloc(z->img_comp[i].coeff_w * z->img_comp[i].coeff_h * 64 * sizeof(short) + 15);
+         z->img_comp[i].raw_coeff = STBI_MALLOC(z->img_comp[i].coeff_w * z->img_comp[i].coeff_h * 64 * sizeof(short) + 15);
          z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15);
       } else {
          z->img_comp[i].coeff = 0;
@@ -6176,6 +6177,7 @@ STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int
 
 /*
    revision history:
+      2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG
       2.00  (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg)
                          progressive JPEG (stb)
                          PGM/PPM support (Ken Miller)