Changes to be committed:
    deleted:    tornadolet/_gbase.py
    new file:   tornadolet/gsync.py
    deleted:    tornadolet/setup.py

Changes not staged for commit:
    modified:   demos/echosvr.py
    modified:   setup.py
    modified:   tornadolet/__init__.py
    modified:   tornadolet/iostream.py

version update to 0.1.1

ChangeLog
1. 更新GNIOmeta，结构化GNIOMeta，使扩展代码更便捷。
2. 更新gfuture, gcallback 装饰器，将 child-greenlet 的结果统一通过 ioloop 的 add_callback 进行返回。防止 child-greenlet 由于不断的 callback 无法结束（释放）。
Changes to be committed:
    modified:   demos/echosvr.py
    modified:   setup.py
    modified:   tornadolet/__init__.py
    modified:   tornadolet/iostream.py
Changes to be committed:
    modified:   tornadolet/gsync.py

update Ver 0.1.1 doc.