Fix IE10 bug when cloning an object element without a parentNode
Manual merge after fetch upstream
Fix weird clone bug and add a unit test to verify
Updated the comment above the fix
Add support check, added assertion to check if cleared, add edge case for backgroundPosition
Remove test file that I didn't mean to get into the previous commit
Remove APIs now in jquery-compat
Ensure each tick gets it's own fxNow - Fixes #12837 - Thanks @chadparry

Closes gh-1022
Closes gh-1021
Keep track of a hiding state for toggle based animations - Fixes #8685

Closes gh-1018
Fixing units
Rewriting unit test to be less sticky based on time issues
Unroll the ( || ) in the math - Fixes #12497 - Thanks @lukemella @curiousdannii - Closes gh-1019
No ticket: speedup test suite. Close gh-1020.
Fix #12858: don't expose jQuery/Sizzle expandos
No ticket: speedup effects tests
Fix #12777. Add applet to non-cacheable fragment types.

I don't want to add a unit test that creates a dependency on an applet.
Revert "Fixes #12569. Improve Feature Detect For oldIE bubbling. closes gh-967"

This reverts commit 063ea024e945adbeefbf88578f8ba424ca8a0939.

I've beaten on this for a while and can't find a suitable feature detect that catches Chrome's support for focusin.
Updating the version to 1.9.0pre.
update Sizzle
Fix #8908. Don't let change to originals affect clones in IE9/10. Close gh-886.