0.15 wip

[guybedford]

• Updates traceur to 0.0.95.
• json format support
• Package configuration refactoring
• SystemJS transpiler plugin build support
• SFX core to be built as minified
• Rollup integration
• Comprehensive build testing

[Bnaya]

Is there any way we can contribute?
SystemJS transpiler plugin build support - This will allow to make plugin for https://github.com/Daniel15/babel-standalone?

[guybedford]

@Bnaya thanks for offering to help. The best way to contribute towards getting this work completed, is simply by helping elsewhere so I can continue to focus on this release.

[guybedford]

@Bnaya the biggest single way to help in that regard is to help answer issues of others. I have an inbox of 66 unanswered issues, which is a couple of hours of support time taken out of working on this release.