this commit will cause your 1.0 environment to break. to fix, please
run the script 'profile_migrate.php'. this commit includes a major new
feature to allow your Cacti system to have multiple polling intervals
and for you to create identical graphs using multiple polling intervals
in a sane way. this is an initial commit, one that has been tested.
however, there will be subsequent commits. however, after migration,
this should be considered stable.