Update src/manipulation.js

[Sysaninster]

It code bring leak of memory (test in chrome 23.0.1271.97 m, windows 7). Because every call $('selector').text('any text'), create 2 DOM nodes, but .empty() can't remove they. Code for test http://jsfiddle.net/3RSWf/ (I tested with source from repository and v1.8.3) and result http://my.jetscreenshot.com/7184/20130106-r5yo-219kb . It pull request fix problem.

[mikesherov]

Thanks for contributing! In order for us to consider this pull request, you need to do several things:

1. Download the repository, instead of editing directly in Github's editor.
2. Follow our style guide ( your change is mis indented and uses spaces instead of tabs)
3. Run the test suite to prove you didn't break anything ( in our supported browsers).
4. Run grunt on the code, which does code quality checks like JSHint.
5. Reference the open ticket in our bug tracker that you're attempting to fix.
6. Write a unit test that both exposes the bug you're fixing and shows how your change fixes that bug.

Thanks again for contributing.. When you've done those things, please open a new pull request. For now I'm going to close this one.

[dmethvin]

Also, this particular patch was made against master. Since we want to keep 1.9 and 2.0 in sync behavior-wise, there will also need to be a 1.9 version of the patch for oldIE where there is no .textContent.

[mikesherov]

Please see here for best practices on submitting a patch: https://github.com/jquery/jquery/blob/master/CONTRIBUTING.md#tips-for-jquery-bug-patching