Fix a wrong comment
Merge pull request #678 from authorNari/patch-1

Fix a wrong comment
Rebuild CRuby based building script without Makefile

Tested CRuby 1.8.6 and 1.9.3

You can see building configuration in build_config.rb
Merge pull request #679 from masuidrive/merge_to_cruby_building_script

Rebuild CRuby based building script without Makefile
Adapter mrbgems documentation to rake system
Merge pull request #680 from bovi/doc-rake

Adapter mrbgems documentation to rake system
Fix documentation for mrbgems
Merge pull request #682 from bovi/doc-rake

Fix documentation for mrbgems
Add documentation for compilation process
Fix an unnecessary space
Merge pull request #683 from bovi/doc-compile

Add documentation for compilation process
Merge pull request #684 from bovi/tiny-beautify

Fix an unnecessary space
add mrb_mod_method_defined
add test for Module#method_defined?
Merge pull request #686 from skandhas/pr-add-Module-method_defined

Add Module#method_defined? for mruby
Merge newest mruby
Modify build system for mruby JIT
Support OP_ENTER