Add various strategies to minimize different patterns.#2

Merged

nth10sd merged 10 commits intoMozillaSecurity:masterfrom nbp:master

May 1, 2017

+833-50

Commits on Aug 3, 2015

Add replace-arguments-by-globals strategy, to later minimize arguments computations.
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Add --symbols option to split by tokens, instead of splitting by lines / characters.
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Add check-only in the list of strategies of the usage output.
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Commits on Dec 17, 2015

Add a new interesting test to check different behaviour based on command line switches.
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Commits on Mar 18, 2016

Exit early if the file is smaller than the final Chunk size.
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