Make root see all available pids v2

Changes since v1:
	* Fix a whitespace
	* Make functions that should be static static

Allow root (geteuid() == 0) to see all pids. This way the super-user
can connect to any program. A step on the way of carefully outlining
what UST does and doesn't.

Signed-off-by: Nils Carlson <nils.carlson@ericsson.com>