BUG: Fix TranslatorPlayer tests to account for ctkSpinBox renaming

Commit r22128 updated CTK to propagate renaming of ctkSpinBox
into ctkDoubleSpinBox, this commit also fixes the test that were
using ctkSpinBox.

git-svn-id: http://svn.slicer.org/Slicer4/trunk@22184 3bd1e089-480b-0410-8dfb-8563597acbee