Some minor fixes to produce lighter json#7

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adube wants to merge 3 commits intoshawnbot:masterfrom adube:master

+42-13

Commits on Jan 3, 2013

More compact JSON representation by eliminating whitespaces
adube
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Manually cast integer and float values to avoid quoting them in json.dump
adube
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Commits on Nov 26, 2013

Fix json.dumps, disable ensure_ascii
adube
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