+ take ceiling of division in CalculateIntervalSizeProvider
fix bug in dbapi - search by tag
Merge pull request #486 from amikryukov/calculatedIntervalSizeProvider

CalculateIntervalSizeProvider can provide intervalsCount + 1 points(intervals)
Merge pull request #487 from dlatnikov/JFG_721_Search_by_tag_fails

fix bug in dbapi - search by tag
JFG-697
Merge https://github.com/griddynamics/jagger into JFG-697