Modifications to mlab-support to work within slicebase

The patch to mlab-support includes additions of an init/ directory with init scripts that work within the M-Lab slicebase.

Updates to the default locations in lib/config.xml
Updates to the loaded modules in lib/httpd.conf.npad
Addition of lib/rsyncd.conf.in to relocate log directories to /var/spool/iupui_npad
Addition of the web100-vsys patch