Removed the Symfony2 tests from the phar archive
Removed the Symfony2 tests from the phar archive

Components' tests are now distributed with the code, making the
archive far bigger if we don't exclude them.
tcx1000/Silex,naderman/Silex,peterkokot/Silex,silexphp/Silex,Incognito/silex-fork,tcx1000/Silex,Tobion/Silex,plotek/Silex,lyrixx/Silex,jdreesen/Silex,naderman/Silex,beealone/Silex,fhinkel/Silex,stof/Silex,cesarmarinhorj/Silex,Xephi/Silex,fabpot/Silex,CarsonF/Silex,fabpot/Silex,plotek/Silex,cgsmith/Silex,Xephi/Silex,GromNaN/Silex,Tobion/Silex,peterkokot/Silex,GromNaN/Silex,SanderKnape/Silex,lyrixx/Silex,arduanov/Silex,lokhman/Silex,JPry/Silex,akucherevskiy/developex_test,akucherevskiy/developex_test,mTorres/Silex,Tobion/Silex,peterkokot/Silex,cesarmarinhorj/Silex,mmauri04/Silex,lyrixx/Silex,SpacePossum/Silex,RayRutjes/Silex,romainneutron/Silex,romainneutron/Silex,SanderKnape/Silex,lokhman/Silex,gencer/Silex,JPry/Silex,beealone/Silex,SpacePossum/Silex,Incognito/silex-fork,cgsmith/Silex,romainneutron/Silex,CarsonF/Silex,CarsonF/Silex,mTorres/Silex,RayRutjes/Silex,arduanov/Silex,akucherevskiy/developex_test,stof/Silex,GromNaN/Silex,mathroc/Silex,fhinkel/Silex,mathroc/Silex,naderman/Silex,jdreesen/Silex,stof/Silex,mmauri04/Silex