New mrb format. The detail is in https://github.com/mruby/mruby/issues/944
Change unsigned char to uint8_t
Fixed to uint8_t
Don't initialize variables that store result as MRB_DUMP_OK. It possibly causes bugs on modifications in the future.
Remove unused substitutions and calculations.
Use type cast not void* but char*. Don't substiture void pointers.
Store to *bin_size if bin_size != NULL.
Clean up code.
Sanity check. As there are implicaton SIZE_MAX >= UINT32_MAX in this code. This assumption may break on some targets which have 16bit memory space.
Don't use int. It decreases portability.   Use size_t as array index and length. It avoids overflow in the extreme situations.
Fix warnings.
Merge pull request #1 from monaka/pr-new-mrb_format

Patches to new_mrb_format
Make mrb_top_self return a real instance.
Remove #if 0 ... #endif code.
Remove unused macros.
Preprocessor # should be the top of line.
fixed build error on VS2012 toolchains.
zero length array is GCC extension
Merge pull request #1072 from monaka/pr-cleanup-code-20130326

Cleanup code.
Merge pull request #1073 from kurodash/pr-builderr-on-vs2012

fix build error on VS2012 toolchains.