Update notes for submitted changes

* Update manifest for latest external/chromium_org.
Update notes for submitted changes

* Add the external/jemalloc project.
Update notes for submitted changes

* Add the new generic art targets repo to the master-art manifest.
Update notes for submitted changes

* Add angle_dx11 back to the manifest
Update notes for submitted changes

* Update manifest for latest external/chromium_org.
Update notes for submitted changes

* Revert "Add angle_dx11 back to the manifest"
Update notes for submitted changes

* Update manifest for latest external/chromium_org.
Update notes for submitted changes

* glibc changes for master-dalvik-host.
Update notes for submitted changes

* Add host prebuilts for Clang 3.5.
Update notes for submitted changes

* Add clone-depth="1" to prebuilts/qemu-kernel
Update notes for submitted changes

* Add host prebuilts for Clang 3.5.
Update notes for submitted changes

* Add host prebuilts for Clang 3.5.
Update notes for submitted changes

* Add missing libcxx-related projects to the manifest.
Update notes for submitted changes

* Remove platform/external/v8 project
Update notes for submitted changes

* [master-art-host] Switch to clang 3.5.
Update notes for submitted changes

* Move to new glibc version.
Update notes for submitted changes

* Move to glibc2.11-4.6
Update notes for submitted changes

* [master-art] Move to clang 3.5.
Update notes for submitted changes

* [master-art-host] Move to new glibc version.
Update notes for submitted changes

* Add platform/prebuilts/gcc/linux-x86/host/x86_64-w64-mingw32-4.8