Text within MusicXML disclaimer should be vertically confined

1. 'About'>'MusicXML'.

Desired result: The text within the window should be vertically confined.
Actual result: The text within the window is movable horizontally and vertically.

Discussion: Disclaimers tend to be vertically confined for simpler comprehension.

Using MuseScore 2.0 Nightly Build (5632) - Mac 10.7.4.