Update commonjs example for 0.12
Merge pull request #2610 from zpao/update-commonjs-example

Update commonjs example for 0.12
Monitoring code use of cloneWithProps
Merge pull request #2613 from jsfb/monitor-cloneWithProps

Monitoring code use of cloneWithProps
fix typo in addons.update() $splice command help
Merge pull request #2630 from shamrin/patch-1

fix typo in addons.update() $splice command help
Give context aware message if markup reuse fails

The context is an extra message with comparison of where server and
client markup started to differ.
Merge pull request #2629 from arnihermann/diff-msg-on-checksum-fail

Give context aware message if markup reuse fails