turn off TrailingSpaces in build results windows by default

[glyph]

Lots of build output has trailing spaces in it, especially tools (like unit test frameworks) which generate output incrementally. I think build result windows should have trailing space highlighting disabled by default.

[chikamichi]

Same as #13.

[FichteFoll]

Testing the view parameter passed to the command against view.window().active_view() should help here.

[rchl]

Comparing with active view would be bad for actual inactive but visible views. Those should still show trailing spaces.

Build results seem to be a bit trickier to handle as those don't seem to be that unique (maybe something in view's settings can identify it?).