Reimplmented beforeAll and afterAll so it works when running a single test. Fixes #295
Merge pull request #1 from plain-vanilla-games/before-and-after

Reimplemented beforeAll and afterAll so it works when running a single test.
Merge branch 'master' of https://github.com/plain-vanilla-games/KIF into BeforeAllAfterAllFix
Remove the need for a separate SenTestSuiteRun subclass.
Fix memory leak.
Remove use of -valueForKey: