Update local source and rebuild

From Jay's Cafe' Wiki
cd ~/sandbox/svn/vice-emu/
svn update
cd ~/sandbox/svn/vice-emu/64-bit/gtk3ui
make clean
../../vice/configure -C --enable-native-tools --enable-native-gtk3 --disable-arch --enable-x64 --enable-platformdox --enable-lame --enable-html-docs --enable-static-ffmpeg
make -j 4
make -j 4 bindistzip