added some cache busting

upgraded ditaa to 0.10

download from official repo

cleanup and better way of passing data between stages

fall back to go binary, since the remote API is gone

Adjust method signatures to match parent

Fixed Bug from Issue #13 and #14, upped version

Use an action plugin instead of the simple img.php

The problem was that the rendered ditaa file disappeared with the cache
and was not re-rendered when accessed. Now we bind the ditaa to the
current

Use an action plugin instead of the simple img.php

The problem was that the rendered ditaa file disappeared with the cache
and was not re-rendered when accessed. Now we bind the ditaa to the
current page, via metadata, and access it via the md5 hash. This way we
can easily create the image without knowing if the page still has a
valid cache file for the ditaa (we simply recreate that as needed).

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Codestyle

Added sanity checks for incoming parameters

align="..." will now be set correctly in xhtml mode

streamlined code with graphviz plugin

ODT export should work now

now works with large graphs. fixes #4

Correctly use UTF-8 for locally generated diagrams. Closes #2

Log errors to cache/debug.log when debugging is enabled

made alignment working

(re)added support for locally installed ditaa

added support for ditaa.org online generation of images

new plugin info style

initial checkin