2.6 Branched

I have created the 2.6 branch. As a reminder, please do not commit anything to the branch. If you have a patch that needs to be merged in, please email me directly with a link to the commit email.

If you want to check it out, the branch is located here:

[https://llvm.org/svn/llvm-project/llvm/branches/release_26](https://llvm.org/svn/llvm-project/llvm/branches/release_26)
[https://llvm.org/svn/llvm-project/test-suite/branches/release_26](https://llvm.org/svn/llvm-project/test-suite/branches/release_26)

Hi Tanya, don't forget to move docs/ReleaseNotes-2.6.html to
docs/ReleaseNotes.html!

Ciao,

Duncan.