Use relative installation paths, so alternate location can be specified.
Fix handling in libcvmfs of absolute paths in symlinks.
Updated to cctools 2448 to get fix for /proc/<pid>/exe for root.
Merge branch 'upstream_cvmfs2_1' into cvmfs2_1

Conflicts:
	cctools/configure
Updated to cctools 3dafd2144ff3f53e from git hub to fix lcg-ls hang.
Merge branch 'upstream_cvmfs2_1' into cvmfs2_1
Updated to cctools 3dafd2144ff3f53e to fix lcg-ls hang.