Halogen 10 release

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Merge pull request KierenP#194 from KierenP/small_speedup_2

Small speedup
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Halogen version 8.1 bump

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Halogen 8 version bump

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Release Halogen 7

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Update version number

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Final commit of version 5

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Changed my mind about version numbers

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Final commit for version 3.0

Added binary for version 2-7 release