Fixed wrong section size calculation

Fix a type mismatch.

LEGAL File Generator for Builds

Add arena guard. It will be exausted when the pool is huge.

Use mrb_format() instead of s*printf().

Fix raisef() format strings in struct.c.

Fix format for new mrb_raisef().

Added debug infomation section into .mrb file

Add travis_config.rb

Use mrb_check_datatype directly to avoid warning.

use new mrb_format API from mrb_raisef; its only format specifier is "%S" (stringify) and takes mrb_value; close #1062

Add simple usage message for mirb

Fix build error on VS2012 toolchain.

A local variables define beginning of a scope block.
VS2012 unacceptable ";;" in struct definition.

Add test for Random::srand

Remove unused variable