rototilling the ij scripts

[Rick Hillegas]

As part of the copyright rototill, we're going to need to put headers in 
our ij scripts. Rather than rototill the canons as well, I recommend 
that we just sed out the header. So, for instance, we could agree to put 
the following block verbatim at the beginning of every ij script and 
just sed it out. What think ye?

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