Added Contains<T>/DoesNotContain<T> for array of T.
This allows to use a statement like:
assert.Contains<string>(['a', 'b', 'c'], myItem.Name)
IFDEF for XE around AreNotEqual was wrong (AreNotEqual for integers was deactivated in versions after XE)
Merge branch 'fix_AreNotEqualIfDefWrong' into LUCEBITversion