IE11 test_scroll failures

[haysmark]

See:

​http://archive.dojotoolkit.org/nightly/checkout/dojo/tests/window/test_scroll.html

I've been noticing failures lately in this test. It looks like IE11 thinks it is an older version of IE with respect to some of the required scrolling calculations. At first I thought this was unique to 1.7, but now it seems that the issue is also in recent versions.

Here is the progress I've made on the 1.7 version, which removes ~28 of the failures:

​https://github.com/mahays0/dojo/commit/067de64b6ded82dd42467b538ec73416c0d84a78

I'm all for further feature-detection as an alternative, but this code involves some very complicated maneuvering.

[bill]

See also comment at ​https://github.com/dojo/dojo/pull/86#issuecomment-46581844.

[Colin Snover]

1.7.6 has been released, retargeting all open tickets to next milestone.