Ignore .cache dirs.
Delete messages.log
Merge pull request #1387 from benbc/2.0-test-directory-paths-shorter

Avoid Windows path length limit for test directories
Start adding failing Cypher examples. Work on docs related to indexes.
Ignore a test that is failing on Windows. Fix in progress.
Remove deprecated settings.
Remove deprecated methods on GraphDatabaseService.
Remove deprecated IndexProvider.
Remove deprecated method PropertyContainer#getPropertyValues().