Implementation for goggles

[alicoding]

If we want to use this module in goggles.webmaker.org we have to consider and implement the following:

One. getCurrentLang()

• This function currently will take the language from the html attribute and return that and if it's not there then we return default en-US, but in x-ray goggles if they use the bookmarklet and saved a version different than English they should always have that language available depend on the URL in the script and not on the page they are visiting.

Two. URI and URL options in ready()

This is another issue where we have to implement in favour of x-ray goggles because we are using the script not only on the same domain, but also on a different location, so we need to have options we pass for URL -- https://goggles.webmaker.org/ or any host name and we will complete the rest inside our ready() in order to get the strings catalog. and the URI by default is /strings/ anyway, but if we have different path for that, so it is good to still keep this options.

Three. Cross Domain.

Not sure if this can be done directly here, but Access-Control-Allow-Origin is the issue that we faced in Popcorn Maker and Goggles at the moment, so if we can have this option set in our module then that is a good implementation.

I already have something done, but will need some advice and discussion if @humphd wants me to do a PR on some of these.

[alicoding]

Most of these issues in goggles are now addresses. for number 2 we have that in the latest version and the rest we have our own solution. This issue can now be closed.