Merge from setuid-branch.  Changes also by Martin Hunt
	<hunt@redhat.com>.

	* Makefile.am: Added staprun_funcs.c and cap.c to
	staprun_SOURCES.  Added -lcap to staprun_LDADD.  Removed
	stp_check reference. Added stapio program.  Staprun is now
	setuid.
	* Makefile.in: Rebuilt.

	* configure.ac: Version increase to 0.6 and checks for libcap
	availability.  Removed stp_check reference.
	* configure: Regenerated.
	* stp_check.in: Removed.

	* systemtap.spec.in: Version increase to 0.6-1 and added
	BuildReq for libcap-devl (and removed sudo requirement).
	Added %pre script to create new groups.  Staprun is now
	setuid.

	* NEWS: Added info on new security model.
	* INTERNALS: Removed sudo reference.

	* README.security: New file.

	* main.cxx (main): Make sure module name isn't too long.
	* hash.cxx: Moved MODULE_NAME_LEN define to hash.h.
	* hash.h: Moved MODULE_NAME_LEN define here from hash.cxx.

	* buildrun.cxx (run_pass): No longer runs staprun with "sudo".

	* stap.1.in: Removed sudo references and added information about
	the stapdev/stapusr groups.
	* staprun.8.in: Added information about module detaching and
	attaching.  Removed sudo references and added information
	about the stapdev/stapusr groups.  Removed reference to
	staprun needing to be run as root.  Removed reference to
	removed '-u USERNAME' option.

	* .cvsignore: Removed stp_check and added stapio and stap_merge.

	* .cvsignore: Changed 'stpd' reference to 'staprun'.
	* INTERNALS: Ditto.
	* buildrun.cxx (run_pass): Ditto.
	* lket.5.in: Ditto.
	* stap.1.in: Ditto.
	* stapruncs.5.in: Ditto.
	* examples/small_demos/demo_script.txt: Ditto.
	* examples/small_demos/sys.stp: Ditto.

	* systemtap.spec.in: Created a new subpackage,
	"systemtap-runtime", that contains staprun.

	* Makefile.am: Renamed 'stpd' to 'staprun' and moved it to
	$(bindir).
	* Makefile.in: Regenerated from Makefile.am.

	* configure.ac: Incremented version number.
	* configure: Regenerated from configure.ac.