update source gen
update c/common.green
fix TypeBinary, TypeSelfAssign
make GreenTeaConsts.java and GreenTeaUtils.java
reformat source tree
fix syntax definition
fix indent
remove GreenTeaVirtualMachine.java
split GtTokenFunc
fix indent and use direct access to const data
remove old codes
remove old files
update build.xml
import GreenTeaConsts
update source generator
update grammar
update java
update JavaSourceGen
update makefile
added GtStat.green, GtSyntaxPattern.green