update JavaScript.peg
Merge pull request #2 from tetsurom/JSGrammer

update JavaScript.peg
update python.peg
fix python.peg
Merge pull request #1 from nikuuchi/python

[WIP] Python.pegの作成
add NonMemoPegParserContext.java
add NonMemoMode
Merge pull request #4 from yshinya6/NonMemoMode

add NonMemoMode
add else
fix option name and file name
file add
Merge pull request #5 from yshinya6/DisableMemoMode

Disable memo mode
append label definition document
Merge pull request #6 from nikuuchi/labeldef

Append a document of label definition
refactor Main.java.
--disable-memo does not require extra argument
clean up unuse code
remove unused codes
Merge pull request #8 from imasahiro/refactor_main

Refactor Main.java
remove comment
revert Peg.java