Update hikari 1.3.8->1.3.9: https://github.com/brettwooldridge/HikariCP/blob/dev/CHANGES
Update mysql-connector 5.1.30->5.1.31: http://dev.mysql.com/doc/relnotes/connector-j/en/news-5-1-31.html
Jetty 9.2.0->9.2.1: http://dev.eclipse.org/mhonarc/lists/jetty-announce/msg00066.html