Pythonic-testcase

====================
- assert_length() now consumes generators if this is necessary to get the length

====================
- instruct test runners to suppress traceback lines from PythonicTestcase when
displaying a test failure.

====================
- export 'SkipTest' class via unittest (Python 2.7+), unittest2 or
nose.plugins.skip
- support for "expect_failure" decorator. It works very similar to unittest's
"expectedFailure". However failing tests are reported as "skipped" not
"passing" if the test runner does not support "expected failures" (such as
nosetests 1.x).

====================
- rename project to "PythonicTestcase" to workaround pip's automatic
replacement of underscores with dashes. This simplifies installation
from a private index.

====================
- fix: assert_raises does not catch some (expected) exceptions on Python 2.6

====================
- implement assert_not_raises