This addresses a problem caused by files in which a source element ha…#80

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LettError merged 2 commits intomasterfrom

fix-empty-source-name

Mar 28, 2017

Commits on Mar 28, 2017

This addresses a problem caused by files in which a source element has no name attribute. Mutator uses the value of the name attribute to store some data and retrieve it later. This adds a temporar…
LettError
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As per comment from @anthrotype use enumerate.
LettError
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