fix errors in [Shell|RubyStyle] package
adding script statement
refactoring script defintion
bugs fixed at script statement
adding a test script for script statement
modifying interface of kMethod_GenCode
refactoring KBuilderAPI
refactoring SUGAR api
refactoring visitor and irrelevenat tests
Merge branch 'fix_shell' of https://github.com/wakamori/minikonoha
Patternmatch $Token* pattern in Syntax.ShellStyle
Merge pull request #358 from wakamori/fix_shell

Patternmatch $Token* pattern in Syntax.ShellStyle
script is an atomic statement
Merge branch 'master' of github.com:konoha-project/minikonoha
commenting out debug prints
enable '$()' CommandReplace Expression in Syntax.ShellStyle package
Merge pull request #360 from wakamori/fix_shell

enable '$()' CommandReplace Expression in Syntax.ShellStyle package
starting to develop expression block
replacing BasicNode with BasicBlock
refactoring MiniVM.c