address the scala-xml version conflict a different way (#239)

try publishing 0.9.19 with publishMavenStyle set to true

update RELEASING.md

Merge pull request #229 from SethTisue/prepare-0.9.17

prepare for 0.9.17 release

Bump version to 0.9.16

Bump version to 0.9.15

Bump version to 0.9.14

Merge pull request #214 from lightbend/adapt-120

sbt 1.2.0 compatibility

Fix for sbt 0.13/1.x compatibility

In sbt 0.13, dependencyOverrides is a Set[ModuleID], but in
sbt 1.x it is a Seq[ModuleID], instead. So, use a more generic
type in fixOverrides2().

Updated changelog