[tickers] add milliseconds granularity#777

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PierrickKoch wants to merge 5 commits intodanvk:masterfrom

PierrickKoch:master

Commits on Sep 22, 2016

Commits on Sep 23, 2016

[utils] fix Granularity millisecond naming
PierrickKoch
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Commits on Sep 26, 2016

[utils] fix Granularity millisecond naming (2)
PierrickKoch
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