Fix bug of Lan mode share circle.
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Merge branch 'chenyan'
Add result callback to stopSearchShareCircle method.
Merge remote-tracking branch 'origin/master' into riversyang
Add .settings to gitignore.
Change method name of NioSocketAcceptor.
Rename methods of NioSessionProcessor subclass.
Make relavent change with forest refactoring.
Make relavent change with forest refactoring.
Complete implementation of file sending/receiving.
Make relavent change with forest refactoring.
Fix bug of only create shareCircleServer in createShareCircle method.
Change Lan broadcast default IP.
Add createResult call in creating shareCircle without client instance.
Server端不创建Client时，在返回之前回调已经创建成功的方法，这样上层应用才知道已经创建成功了
如果Server不创建Client,不会走到acceptClient方法，而无论Server还是Client,要获取设备信息都是从集合acceptClients里获取的，而如果不执行acceptClient方法，Server的这个ClientInfo就不会添加进去，只要就无法获得Server的Client,所以在ShareCircleServer添加一个方法addSelf,在创建分享圈里主动调用
add a simple create wifi config
Add sendMessageToClient method to ShareCircleServer.
Refactor WifiApNameCodec interface.