Add Spanish translation

[iros]

trafficstars

[vlandham]

translation branch provides basic support: https://github.com/vlandham/js_data/tree/translation/

General idea is this:

• converted all source from docco to straight markdown
• every language / locale gets its own sub directory in locales: https://github.com/vlandham/js_data/tree/translation/locales
• each page is re-implemented for each language
• code snippets are kept the same from translation to translation in snippets: https://github.com/vlandham/js_data/tree/translation/snippets
• they are added back into the translated markdown using a post processing step that looks for @@. Example:

@@ code=index/index.01.js @@

• grunt is used to build
• template is used to keep banner and footer the same. We might need to do some basic string translations for these static parts. https://github.com/vlandham/js_data/blob/translation/assets/custom.jst

[vlandham]

capabilities now merged into master. will keep this open until translations are in repo.