Unit tests for the HasTraits.class_traits class method
Add test for dynamic range; update deprecated test methods.
Unit tests for Tuple trait
Merge branch 'master' into tst-more-unit-tests

Conflicts:
	traits/tests/test_range.py
Removed calls to assertItemsEqual
Merge pull request #118 from enthought/tst-more-unit-tests

More unit tests
Merge from master; fix conflicts in test_range.py