Merge pull request #2 from walquis/master

Make it work for 8.x hierarchical projects and new-style buildType IDs.
Upgrade JUnit and docs. Change package name.
Clean up the code, switch to only TC 8.x API
Don't need the .idea stuff kicking around
Last updates to only support TC 8.x
Bump revision number
Catch-up merge from cread's repo to my original fork
Restore secondsElapsed (since build finished), and rename to secondsSinceFinished to make its intent clearer