fallback/const-c.inc: Added CLONE_NEWUSER
- This also required the move of CLONE_NEWNS to a different place in the switch
Makefile.PL: Added CLONE_NEWUSER
Unshare.xs: Added CLONE_CONTAINER definition, which include CLONE_NEWNS, CLONE_NEWIPC, CLONE_NEWUTS, CLONE_NEWNET, CLONE_NEWUSER, CLONE_NEWPID
lib/Linux/Unshare.pm: Added CLONE_CONATAINER and CLONE_NEWUSER
- Also updated the version to 0.05
t/Linux-Unshare.t: Added tests for CLONE_NEWUSER and CLONE_CONTAINER