gui stream: remove depth computation from StaticStream

Now always done in updateImage by the main Stream() class, so this is uneeded.
gui: View bug fix
Merge branch 'master' of vpn.delmic.com:odemis
hdf5: don't save company info into thumbnail
gui model: comment
gui: remove example menu

not needed anymore as we can load tiff and HDF5 file, and we do have nice real examples