Check for DLM kernel version in user_begin_group_join

Since we just have to check if the DLM daemon is running, we
just check the kernel version running. Checking the kernel version
ensures that the dlm  daemon is running.
Add cmap and dlm libraries in the tools
Use libdlm_lt.so.3 instead of libdlm_lt.so
mount.ocfs2: Read stack from device and setup stack if not present

Note, this removes cman as the possible user stack.
mkfs.ocfs2: Abort if cluster information is not detected
mkfs: Setup cluster_stack if not setup based on what is set