Changed flags name in libmruby.flags.mak
Added "Unknown toolchain/gem" error message
Merge pull request #763 from matsumoto-r/change_cflags_name

Changed flags name in libmruby.flags.mak
Merge pull request #767 from masuidrive/build_error_message

Added "Unknown toolchain/gem" error message
zero initialize hex buffers; close 768
Merge branch 'master' of github.com:mruby/mruby
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