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
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.
Merge branch 'x8908'
Fix #12915, add propHook for scrip src property on oldIE. Close gh-1035.
Grunt: Set testswarm/browserSets from JSON file.

File on jq03.jquery.com is already updated.
Fix #11795, #10470: keep scripts in DOM; execute only on first insertion. Close gh-864.
fix Safari test failures
Fix #12920: remove addMandatoryAttributes. Close gh-1037.
Set async to true instead of async (prop vs. attr). Closes gh-1039
Fix #3827. Get the correct checkbox status for a click handler.
Fix #12868. Use native focus/blur to get event order right.