[zanata/zanata-platform] dc11d5: fix: improve stats collection

[GitHub]

  Branch: refs/heads/ZNTA-968-stats
  Home:   https://github.com/zanata/zanata-platform
  Commit: dc11d5286c1fe9b7bbb61fc78b82207f78e417b9
      https://github.com/zanata/zanata-platform/commit/dc11d5286c1fe9b7bbb61fc78b82207f78e417b9
  Author: Alex Eng <aeng at redhat.com>
  Date:   2018-06-05 (Tue, 05 Jun 2018)

  Changed paths:
    M server/services/src/main/java/org/zanata/dao/ProjectIterationDAO.java
    M server/services/src/main/java/org/zanata/rest/service/StatisticsServiceImpl.java

  Log Message:
  -----------
  fix: improve stats collection

https://zanata.atlassian.net/browse/ZNTA-968



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