Update SimpleTest to 1.1.0
Update core Date field tests for upcoming 2.3 release
Update README files for 2.3
Use ExtensionManager::about(), it's more reliable than talking to the extension
Some improvements for 2.3.
Merge pull request #3 from alpacaaa/integration

Integration
Improved interface, tests are grouped by where they are installed (Symphony, Workspace, an extension).
Merge with master
New UI, merge with Rowan's updates
Updated core tests for the changes to 2.3.2
Release 0.5