Add libjitsi OSGi activator class source code (from Jitsi project)
Add library to support osgi (the same that videobridge uses),
an updated version of libjitsi, and OrangeExtension (just to satisfy
dependencies of BrowserLauncher.java -> this class is not used but
I added to have all the classes of the package
 net.java.sip.communicator.launcher available).

Also add the mentioned classes of the net.java.sip.communicator.launcher package.
Add functions in Main class copied from the SIPCommunicator.java class.
Add code from SIPCommunicator main method, that uses these functions,
to correctly set some environment variables like the path to properties,
so that jitsi-hammer use the same configuration that Jitsi
Remove useless import and uncomment the call to start function of the hammer.
Add to the Hammer class OSGi support (with code copied from videobridge,
with some little modification).
Change coding style for some function to correspond to the 80 char limit.
Trying to add the AudioSilenceMediaDevice as the audio device that
will take care of the audio stream (also sending data).
It's not working for now..