The trapezoid now throbs between black and white. This was made to
test out the element buffers using MyBatch. Next up for the
batches should probably be to figure out the recommended way of
specifying more than one element buffer. Currently it is done
by specifying the number of elements to be stored and the number
of element vbos needed but maybe there is some way to get it to
work using variadic templates. There is a comment about this in
the Batch.h file.
