#3 (LB 0.5) Simple API for remote posting

[Gerrit van Aaken]

We must be a little bit more web2.0. We need a simple API, which enables
even desktop applications to publish audio files through Loudblog.

The API should be based on a POST request. Thus it can only send files up
to 2MB (on the most servers). But we can refer to an existing file on the
upload folder to avoid this problem.

Desktop software like "Übercaster" could do the following steps:
- Produce the MP3 file
- Upload it to the "upload" folder via FTP
- Send an HTTP/POST request to Loudblogs API and tell some meta-data.
- Loudblog does the database job and copies the file into the "audio"
folder.

Wouldn't this be great?