add TestWaitIPAddresses and remove not used variables from lxc_test.go
start to use runtime.SetFinalizer so that Go Garbage Collector can collect the Container objects
introduce CloneOptions
Merge pull request #23 from caglar10ur/SetFinalizer

start to use runtime.SetFinalizer
move some unexported constants into container.go
pass ConfigPath via CloneOptions
<INVALID> is a bad string to use instead return the zero value
Merge pull request #25 from caglar10ur/CloneOptions

introduce CloneOptions