Release 2.3

[ariya]

• Bump version number
• Update ChangeLog
• Update devDependencies (JSCS, Istanbul, ESLint, ...)
• Check for performance regression
• Test some important downstream projects
• Tag the repository
• Publish to npm
• Update web site

[ariya]

Performance check using V8 4.3:

2.2:

    Underscore 1.5.2    42.5 KiB      6.79 ms ± 3.45%
      Backbone 1.1.0    58.7 KiB      5.96 ms ± 0.61%
      MooTools 1.4.5   156.7 KiB     30.29 ms ± 1.05%
        jQuery 1.9.1   262.1 KiB     31.04 ms ± 1.10%
          YUI 3.12.0   330.4 KiB     29.57 ms ± 2.87%
 jQuery.Mobile 1.4.2   442.2 KiB    126.83 ms ± 8.16%
       Angular 1.2.5   701.7 KiB     86.80 ms ± 6.85%
                     ------------------------
                      1994.3 KiB    317.29 ms ± 6.38%

2.3:

    Underscore 1.5.2    42.5 KiB      6.82 ms ± 3.26%
      Backbone 1.1.0    58.7 KiB      6.00 ms ± 0.69%
      MooTools 1.4.5   156.7 KiB     30.90 ms ± 0.87%
        jQuery 1.9.1   262.1 KiB     31.98 ms ± 1.39%
          YUI 3.12.0   330.4 KiB     28.37 ms ± 0.76%
 jQuery.Mobile 1.4.2   442.2 KiB    123.92 ms ± 7.33%
       Angular 1.2.5   701.7 KiB     89.50 ms ± 6.65%
                     ------------------------
                      1994.3 KiB    317.48 ms ± 5.83%

[ariya]

No functional regression was observed on the following downstream projects:

• Istanbul (current master)
• JSCS (current master)
• escomplex-js (current master)

[ariya]

This is completed, 2.3.0 is now available.