Merge pull request #60 from wakama2/master

process work
enable desugared shell code
Merge pull request #61 from sekiguchi-nagisa/d-shell

Now Work Shell Syntax !!
bug fix ShellGrammar
Merge pull request #62 from sekiguchi-nagisa/d-shell

Bug Fix ShellGrammar
add sample
comment out Process.SetArgument(String[])