added tests for a number of types, including collection types


git-svn-id: svn+ssh://svn.mystic.cacr.caltech.edu/pathos/dill@513 8bfda07e-5b16-0410-ab1d-fd04ec2748df
added checks for 'string services' and 'data types' (CH7-8 Python Std. Lib.)


git-svn-id: svn+ssh://svn.mystic.cacr.caltech.edu/pathos/dill@514 8bfda07e-5b16-0410-ab1d-fd04ec2748df
Merge branch 'master' of https://github.com/uqfoundation/dill