IE8 Compatibility

[sorrycc]

Close #102

[vramana]

@sorrycc I don't see a need for this change. Please revert changes on this particular file.

I'll look at this PR in the weekend. I am bit busy with my college work.

[sorrycc]

It's don't work in IE8 either.

[nosir]

Assume one has included es5-shim for IE8 supporting, .map for array should be safe. The problem is within .apply. It should be: var dots = Array.apply(null, Array(dotCount + 1).join('0').split('')).map(...
Tested with native IE8, it works.

[vramana]

@nosir Thanks for your comment. My knowledge about ie8 is next to nothing. @sorrycc Is es5-shim an acceptable solution in your case? I really don't want to keep any for loops in my code unless it is required seriously.

[nosir]

@vramana To make ReactJS work with IE8, you have to include es5-shim anyway. Also I think it's not necessary to include the polyfill for addEventListener, it should be specified in README like ReactJS does in its doc.
http://facebook.github.io/react/docs/working-with-the-browser.html#browser-support-and-polyfills
I can send another PR for all these stuffs

[nosir]

Please refer to: #110
Thanks to @sorrycc for targeting the issue.