JSS objects will now always have a distribution_points property.
Update requests to 2.5.0.
Update CHANGELOG.
Fix tests part 1.
Explicitly test for each possible method case in JSSObject.save()

There were some exceptions that were falling through. Update tests.
Fix test failure to delete policy. For now.
Fix test_jss_with_args test. Remove print.
Fix #15, problems with categorized objects saving when no category.

Added overridden save() methods to Policy and Package to handle until
Jamf fixes it.

Improved error reporting greatly in the save() method.

Updated tests. All tests passing again.
Finalize CHANGELOG. Update version.