Resource limit information is not kept in the kernel for contexts that do not have

Resource limit information is not kept in the kernel for contexts that do not have
any processes.  These limits need to be reinstantiated.  For this reason, I have
modified vsh to read in CPULIMIT, MEMLIMIT, and TASKLIMIT from /etc/vservers/xyz.conf
and set these limits if the context does not exist.   When NM takes over this role,
the get_limits() function of vsh will need to be modified to obtain those limits
from NM rather than these conf files.