kepler bump to m2e 1.4.0

As M2E has been bumped to 1.4.0 with Kepler release I redid the changes of pull request #2 ,  bumping this time to 1.4.0 versions. 

I also manually updated Eclipse 3.6 target to a 4.2 one because of some issues in 1.6.2 slf4j dependency coming from m2e and not found. 

Tests fail halfway inside ckpackager plugin, with some error regarding maven-dependency-copy to an existing target folder (which sounds superficially similar to comments in the last pull request). 


I hope this is useful or helps :)