Improvements:

• Pick the higher version if there are multiple on the current commit #162 by @mpollmeier
• Allow omitted '.git' postfix #175 by @raboof and @jrudolph
• Use openjdk instead of oraclejdk #170 by @xuwei-k
• Release to sonatype from CI #188 by @raboof

Updates:

• sbt 1.1.0 -> 1.5.1 #152, #153, #159 by @sullis, #189 by @raboof
• jgit 4.9.0.201710071750-r -> 4.9.0.201710071750-r by @jsyeo