GitBook English edit support

[jayvdb]

After #64, the GitBook is readable

https://coala.gitbooks.io/projects/content/

The English README.md and SUMMARY.md are editable, and the bahasa is editable.

However the English pages are not editable, due to GitbookIO/gitbook#1906 / GitbookIO/gitbook#1905 . I have a few other ideas for how to get around this.

An alternative is to move our _projects and _faq into data/locale/en to conform with GitBook expectations, which would require a change to the JS site also.

[blazeu]

Would copying the content from data/locale/en to _projects and _faq before running jekyll a viable solution?