Add C++/Objective-C init in toolchains
Added finalizer of mrbgems
Removed ext
Refine pretty printing
Fixed markdown of code in mrbgems/README.md
Fix pretty-print test miss
Refine pretty-print indenting
Merge pull request #769 from masuidrive/mrbgem_init

Add C++/Objective-C init in toolchains
Merge pull request #770 from masuidrive/mrbgem_finalizer

Added finalizer of mrbgems
Merge pull request #772 from arciem/updateMarkdown

Fixed markdown of code in mrbgems/README.md
Merge pull request #773 from thecodeshop/ppp

Refine pretty printing
resolve conflict
Remove reverse
Merge pull request #775 from mattn/remove_reverse

Remove reverse