- removing unneeded files

...screenshare/jws/native-libs/ffmpeg-linux-x86/build.gradle

bbb-screenshare/jws/native-libs/ffmpeg-linux-x86/build.xml

...tive-libs/ffmpeg-linux-x86/ffmpeg-3.0.2-1.2-linux-x86.jar

bbb-screenshare/jws/native-libs/ffmpeg-linux-x86/sign-jar.sh

...libs/ffmpeg-linux-x86/svc2/ffmpeg-3.0.2-1.2-linux-x86.jar

...eenshare/jws/native-libs/ffmpeg-linux-x86_64/build.gradle

...screenshare/jws/native-libs/ffmpeg-linux-x86_64/build.xml

...ibs/ffmpeg-linux-x86_64/ffmpeg-3.0.2-1.2-linux-x86_64.jar

...reenshare/jws/native-libs/ffmpeg-linux-x86_64/sign-jar.sh

...fmpeg-linux-x86_64/svc2/ffmpeg-3.0.2-1.2-linux-x86_64.jar

...enshare/jws/native-libs/ffmpeg-macosx-x86_64/build.gradle

...creenshare/jws/native-libs/ffmpeg-macosx-x86_64/build.xml

...s/ffmpeg-macosx-x86_64/ffmpeg-3.0.2-1.2-macosx-x86_64.jar

...eenshare/jws/native-libs/ffmpeg-macosx-x86_64/sign-jar.sh

...reenshare/jws/native-libs/ffmpeg-windows-x86/build.gradle

bbb-screenshare/jws/native-libs/ffmpeg-windows-x86/build.xml

...-libs/ffmpeg-windows-x86/ffmpeg-3.0.2-1.2-windows-x86.jar

...creenshare/jws/native-libs/ffmpeg-windows-x86/sign-jar.sh

...are/jws/native-libs/ffmpeg-windows-x86/svc2/api/build.xml

...ibs/ffmpeg-windows-x86/svc2/api/ffmpeg-3.0.2-1.2-svc2.jar