Changed release date in release notes
Allow running a subset of tests.

Can pass testname arguments to run_tests.py, e.g. ``run_tests.py timepiece.TestCassName1 timepiece.TestClassName2``, and only those tests will be run.
Branch: feature/test-subset
Merge pull request #607 from caktus/feature/test-subset

Allow running a subset of tests.
Merge pull request #608 from caktus/cleanup/urls_and_templates

refs #582 - Updated URL and template structure
Merge remote-tracking branch 'origin/develop' into feature/contract-enhancements
Removed ProjectContract from Project admin
refs #498 - Tests for contract list & detail