fixed the implementation so that it uses OSGi LogService
minor change in the SpecificationWrapper class
(using new Xtend 2.7 API)
reordering of bundles in bnd.bnd
Minor refactoring.
Just moved some utility classes and methods into different projects.
removing dependency on org.apache.log4j inside org.foam.transform + minor refactoring
Merge remote-tracking branch 'origin/master'
removed old EMF 2.9 from local repo and moved version 2.10 from build repo to local repo
removing redundant bundles from local+build repo
Added missing bundles to the BND build path because they are required by unit tests.
It wasn't obvious that Xtext uses log4j and xtext utils at runtime.

org.apache.log4j (provided by paxlogging)
org.eclipse.xtext.util
Added PAX logging framework as a replacement for various legacy logging APIs.

The bundle "org.ops4j.pax.logging.pax-logging-api-1.7.4.jar" is a replacement (frontend) for bundles such as org.apache.log4j or org.apache commons.logging (and more)

The bundle "oorg.ops4j.pax.logging.pax-logging-service-1.7.4.jar" is an implementation of the Osgi LogService (backend) which replaces e.g. org.apache.felix.log
Improved run configuration for our FOAM tool.
Now the logging is handled by PAX.
We use a simple configuration through OSGi properties.
Fixed a bug in FileUtils.bundleCopy() method which was only able to copy files form its parent bundle. Now, there is a parameter which defines the source bundle to copy from.
Merge branch 'logging-pax'
adding comments about configuration properties to the run configuration
converted functions of FoamNamingExtensions to static and @Pure functions
reimplemented zip() and zipWith() fully in Xtend, using a single ZippingWithIterable class
marked some functions as pure
updated link to the latest FOAM paper published in Oxford Computer Journal
refactoring of Lts2NusmvLangService
Merge branch 'Lts2NusmvLangService'