Merge pull request #73 from malexandre/allman-style-brackets

Fix #72 indentation decrease for Allman style
Prepare 0.50.0 release
Add support for new ES6 numeric literals

https://people.mozilla.org/~jorendorff/es6-draft.html#sec-literals-numeric-literals

BinaryIntegerLiteral ::
  0b BinaryDigits
  0B BinaryDigits

BinaryDigits ::
  BinaryDigit
  BinaryDigits BinaryDigit

BinaryDigit :: one of
  0 1

OctalIntegerLiteral ::
  0o OctalDigits
  0O OctalDigits

OctalDigits ::
  OctalDigit
  OctalDigits OctalDigit

OctalDigit :: one of
  0 1 2 3 4 5 6 7
Support ES6 regular expression flags `u` and `y`
Merge pull request #74 from mathiasbynens/es6-numeric-literals

Add support for new ES6 numeric literals
Merge pull request #75 from mathiasbynens/patch-1

Support ES6 regular expression flags `u` and `y`
Prepare 0.51.0 release