gazebo is marked for autoremoval from testing

[Debian testing autoremoval watch]

gazebo 7.3.0+dfsg-2 is marked for autoremoval from testing on 2016-08-20

It (build-)depends on packages with these RC bugs:
814905: liblog4cplus-1.1-9: C++11 methods missing from the binary
826807: blender: OpenJPEG removal
828621: opencolorio: FTBFS: ! Undefined control sequence.