#139 -- move source files according to the Java convention; add the ecli...

I used "git mv" to relocate all *.scala files according to the java convention (directory / package)

The project compiles & tests cleanly with sbt.

To make it easier to work with eclipse on this project, I added the 'eclipse' sbt plugin.

The sbt/eclipse configuration requires more work: currently, executing 'eclipse' in sbt results in a situation where 3 sub-projects: plantain, rdf, rdf-test-suite have each 3 sub-sub projects: common, js, jvm but the sbt/eclipse generated metadata for the */common sub-sub projects overwrites the js & jvm variants on top of each other. 

- Nicolas.