rollup v0.20.4 Release Notes

    • Check file exists at resolve time, to allow filenames with non-extension dots in them (#250)
    • ๐Ÿ‘ Import Promise where used, for Node 0.10 support (#254)
    • ๐Ÿ‘ Allow asynchronous transformer plugins (#260)
    • Don't assume re-exported bindings are globals when deconflicting (#267)