Fix formatting of the print statements for Python 3.  Update version number to 3.0dev.
Pick up version number fix from the trunk.
* Add version number to __init__.py file for pysynphot.
* Revert property definitions in specturm.py to original locations.  Must find out why there is no constructor for that class that this properties could be members of.
* Update MANIFEST.in with location of new test data.