Clarify duk_eval() strictness in API doc
Merge branch 'eval-strictness-doc'
Release note: avoid nested lists

Nested lists format a bit awkwardly and it's cleanest to have the release
note change list be a flat list anyway.
Download page: placeholder for 0.12.0
Make polyfill functions non-enumerable

It's a common expectation that Object.prototype methods in particular
are not enumerable so that they don't participate in e.g. for-in loops.
Release note: polyfill enumerability
Merge branch 'polyfill-non-enum'
Ditz issue update