Fix comparison to return -1, 0, 1 and Improve xml element content comparison#14

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bsrouji wants to merge 3 commits intokodybrown:masterfrom

Commits on Jun 2, 2021

Fix comparison to respect -1, 0 or 1 return value, we can't assume returning 1 if col1 is lower than col2
bsrouji
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Commits on Jun 3, 2021