* Add support for plugin options in Babylon
They work similarly to how they work in Babel. e.g.
babylon.parse({
options: [
"plugin1",
["plugin2", { option: true }]
]
});
The inernal api to get an option is
this.getPluginOption("pluginName", "option")
If the plugin isn't defined, it returns undefined.
* Add Babylon option decorators.secoratorsBeforeExport
* Nit