named lanes linda like lanes.linda('name') need

[zhiguo zhao <zhaozg@...>]

merry christmas to lanes author(s) and all luaer.

Now linda must be pass as arg from main lua to child lanes threads.

I think when use string not function to start child lanes thread with lanes.gen, need named linda, that is  lanes.linda('name')  will return same linda object if pass same 

same name.

named linda and unamed linda just link named shared memory or unmaed shared memory.