New syntax is : plantuml/proxy/[id/][format/]remoteURL
where id is a number identifying the diagram definition
when the remote URL contains more than one diagram,
and format specify the output : img, txt or svg.
Improved unit tests to be independent of externally running servlet container, now every test runs its own embedded jetty server (and stops it afterward).
Removed all eclipse artifacts (.project, .classpath, .settings, etc.) and added to .gitignore to be independent of development environment (can be autogenerated by maven, or better yet use m2eclipse).
Removed embedded dependency jars since they are handled automatically by maven.
