Create a plugin that can work without using maven at all

Using the Sonar Plugin for Hudson is a REAL pain in the ass if you don't have maven in the first place. Neither does the automatic setup of Maven work nor does it play well if you already have a custom settings.xml, and and and ...

Sonar is single setup in the build process and should not influence the whole build that much. Starting a full download orgy after the build has already been completed on each build node is far form acceptable. As is entering all information about the project twice, once for jenkins, once for the Sonar plugin.

The plugin should as self containing as possible.