Change exported library name to proper JS variable

[jlongster]

Line https://github.com/bvaughn/react-virtualized/blob/master/webpack.config.dist.js#L14 in webpack makes it so that if you include this as a <script> tag on a page, it sets it to window["react-virtualized"] which is strange. I would expect it to be window.ReactVirtualized, so that it exposes a ReactVirtualized global without forcing a referencing through the window object.

[bvaughn]

Hey @jlongster. Seems like a good suggestion. Since this is a backwards incompatible change- I'm going to consider this for the upcoming v5 release. (I kind of doubt anyone's using the library as window["react-virtualized"] but... just in case, I don't want to break them in a minor point release.)

I've actually been considering support Common JS only for the upcoming release. Although I guess I could also include a <script>-friendly dist file as well.

PS. Perfect timing on your Twitter post about hidden messages with script tags. I was just briefly thrown by the seemingly cutoff email summary I got for this issue.