init commit for issue #3
a dirty implementing of pooling, refactoring needed
What a mess! -_-!
Start working loop first
start refactoring...
Refactoring the client api
pool's syntax error fixed
An infinite loop ... :(
fixed the infinite loop of client
pooling finished
move the auto-inc into the global
do not generate unique id on background submission
Merge pull request #9 from nightlyone/do-bg-no-id

do not generate unique id on background job submission
for issue #10; an IdGenerator interface, use bson.ObjectId as default