Delete waste

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>
Update dependencies to latest versions

Some dependencies are not up to date on purpose:
* Netty (the fifth version requires some work)
* SLF4J as it's bound to chameleon
* Akka-OSGi and TypeSafe Config as their bundle has changed
* Maven-Filtering as the 1.2 version throws a IOException on the reset method (http://jira.codehaus.org/browse/MSHARED-325).

Signed-off-by: Clement Escoffier <clement.escoffier@gmail.com>