make trajectory_plotter more script-ready (get model by name, select axes);
add masked decorator in tools


git-svn-id: svn+ssh://svn.mystic.cacr.caltech.edu/mystic/mystic@739 968178ea-60bd-409e-af13-df8a517b6005
fix: python25 compatability for tools.masked


git-svn-id: svn+ssh://svn.mystic.cacr.caltech.edu/mystic/mystic@740 968178ea-60bd-409e-af13-df8a517b6005
Merge branch 'master' of https://github.com/uqfoundation/mystic