Clear previous run state when starting new test

[recht]

Right now, the previous test run state remains visible until a new test actually starts running - which might take a little while if booting up the test is slow. This can be somewhat confusing, since you might think the new test is already completed. Thus, it would be nice if the state was cleared as soon as a new test is initiated.

[cheeseng]

I think that makes a lot of sense, I'll add this to TODO list. FYI we are currently focus on ScalaTest 2.0.M6 development and we shall start to work on the plugin TODO list right after M6 release.

Thanks a lot for the suggestions, and sorry for replying late.