Updated documentation of the mite.api

Developers, hear hear: we overhauled the documentation of our open data interface, the mite.api.

Besides the known XML format, all requests are now finally depicted in JSON, too. Furthermore, we described common mistakes, HTTP status codes, and some previously undocumented features such as sorting time entries, filter shortcuts, and HTTP caching.

Cheers to a more helpful documentation, and happy coding! Please be so kind and get in touch if you stumble upon any inconsistencies.

Julia in Tech talk