Update notes for submitted changes

* Fix typo in ISA centralization
Update notes for submitted changes

* Fix thread join hangs
Update notes for submitted changes

* Decrease target utilization for foreground apps.
Update notes for submitted changes

* Fix volatile wide put/get to be atomic on x86 arch
Update notes for submitted changes

* Build dex2oat as 64b for the target when using zygote64
Update notes for submitted changes

* Disable another timing sensitive test on dist builds
Update notes for submitted changes

* Preparation for transition to libc++.
Update notes for submitted changes

* Simplify HInvokeStatic code generation.
Update notes for submitted changes

* Code cleanup in preparation for x64 backend.
Update notes for submitted changes

* String.IndexOf method handles negative start index value in incorrect way
Update notes for submitted changes

* Use LIRSlowPath for throwing NPE.
Update notes for submitted changes

* Fix a class-loading bug in the verifier when throwing NPE
Update notes for submitted changes

* Add untested x86-64 downcall and exception assembly.
Update notes for submitted changes

* Use non volatile lock words in semispace collector.
Update notes for submitted changes

* Comment disallow new monitors.
Update notes for submitted changes

* Interpreter-only mode should cause dex-to-dex compilation.
Update notes for submitted changes

* Use LIRSlowPath for throwing ArrayOutOfBoundsException.
Update notes for submitted changes

* Fix a use of OpCondBranch that breaks the MIPS build.
Update notes for submitted changes

* Revert "Use LIRSlowPath for throwing ArrayOutOfBoundsException."
Update notes for submitted changes

* Fix elf_writer_test for 64b target