Fill in reference
Add sample command line for testing; really needs to use optparse...
Silence 'Too many labels to avoid overlap' warning
Bump to request Biopython 1.63
Prototype of a MUMmer 3 wrapper for dotplots.

I've looked at http://toolshed.g2.bx.psu.edu/view/abossers/mummer_toolsuite
by Alex Bossers, which tries to cover the entire MUMmer suite, but didn't
like the interface style (e.g. free text box to enter additional options).

Here I am focussing only on going from a pair of FASTA files to a dotplot,
using any of the multi-sequence supporting MUMmer alignment tools together
with mummerplot for output.

The basis seem to work, and the PNG output is sane. However, the PDF output
(and the PS output which is it converted from) has a strange bounding box
problem (on my bacterial assembly test case) showing only the bottom left
corner (i.e. the origin of the plot) on what is probably Letter format as
a page size. This may be why Alex's version only offered PNG output?