Tika quality metrics

[Jukka Zitting]

Hi,

I've set up an experimental Sonar server at http://sonar.zitting.name/
with Tika quality metrics at
http://sonar.zitting.name/project/index/3338.

Overall it looks like we are in a reasonably good shape, but the
reports do highlight some areas that we should look at in more detail.
To improve the report quality we'll need to clean up or exclude some
obvious issues like the way the magic number warnings go crazy with
the ICU4J charset patterns.

BR,

Jukka Zitting