Update ChangeLog.

https://code.google.com/p/esprima/issues/detail?id=493
Fix escaped identifier being treated as a keyword.

https://code.google.com/p/esprima/issues/detail?id=496
Disallow Unicode escaped regular expression flags.

https://code.google.com/p/esprima/issues/detail?id=503
Manifest package.json must contain author field.

https://code.google.com/p/esprima/issues/detail?id=493
Tokens list regression check.

This is very similar to checking the syntax trees of
some popular libraries.

https://code.google.com/p/esprima/issues/detail?id=509
Add the baseline tokens for tokenizer regression check.

https://code.google.com/p/esprima/issues/detail?id=509
Tokenizer: a slash after ] is not a regular expression literal.

https://code.google.com/p/esprima/issues/detail?id=512
Update ChangeLog.

https://code.google.com/p/esprima/issues/detail?id=493
Remove some more cruft for legacy browsers.

https://code.google.com/p/esprima/issues/detail?id=474
Code coverage: ignore known uncovered branches and statements.

https://code.google.com/p/esprima/issues/detail?id=518
Update code coverage report.

https://code.google.com/p/esprima/issues/detail?id=518
Stub to document ES6 official support.

https://code.google.com/p/esprima/issues/detail?id=499
ES6 arrow function.

Based on the previous work by Yusuke Suzuki, Brandon Benvie,
and Marshall Roch.

https://code.google.com/p/esprima/issues/detail?id=517
Remove stacked markers.

https://code.google.com/p/esprima/issues/detail?id=520
Simplify markers; Remove location marker.

https://code.google.com/p/esprima/issues/detail?id=520
Avoid small range object in working tokens.

https://code.google.com/p/esprima/issues/detail?id=520
Fix Traceur on the speed comparison page.

https://code.google.com/p/esprima/issues/detail?id=424
Simplify regular expression scanning.

To reduce the complexity, split it into body and flags scanning.
Also, as suggested by Bei Zhang, separate the testing of regular
expression so that it's try catch won't reduce V8 performance.

https://code.google.com/p/esprima/issues/detail?id=396
ES6: Unicode code point escape

http://code.google.com/p/esprima/issues/detail?id=521
Document the support for ES6 Unicode code point escape sequence.

http://code.google.com/p/esprima/issues/detail?id=521