usnic provider update, merge various recent changes

Signed-off-by: Reese Faucette <rfaucett@cisco.com>
Merge pull request #272 from rfaucett/pr/usnic_update

usnic provider update, merge various recent changes
Makefile.am: ensure to EXTRA_DIST distscript.pl

Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
Merge pull request #273 from jsquyres/pr/make-distcheck-fix

Makefile.am: ensure to EXTRA_DIST distscript.pl