Reverted Nano components to depend on non-snapshot releases until these are required.
Reverted Nano components to depend on non-snapshot releases until these are required.

git-svn-id: a126bfac4aa97cd3a7f91f54159d870b65da37f5@3003 ac66bb80-72f5-0310-8d68-9f556cfffb23

picocontainer/NanoContainer-persistence