Merge pull request #5 from rsignell-usgs/master

Transpose connectivity array if necessary
Merge pull request #6 from rsignell-usgs/master

fix small typo in notebook test
added some test code for the reading data

fixed transposed node array (and pre-allocaed the aray for that data)
Merge branch 'master' of https://github.com/pyugrid/pyugrid
fixed test of faces array to accomidte transpose.

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Merge branch 'master' of https://github.com/pyugrid/pyugrid