Would love to see boostrap integration and split screen view in gwd

[seejhoniecode]

Since we have to use multiple breakpoints while building a lightbox ad, I'd like to have bootstrap integrated in gwd. It would save time copying + pasting media queries.

Also, if gwd is going to replace my IDE for building ads, I need split screen functionality. I'd like to have a preview open on half my screen with HTML or CSS text editor running on the other half.

Thanks!