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better javaHome detection closes #70
remove scoverage (not used)
runtime jars is transitive
Merge pull request #72 from fommil/javahome

fix JAVA_HOME detection
Included unmanaged jars in dependencies.
Merge pull request #75 from marcsaegesser/UnmanagedJars

Included unmanaged jars in dependencies.
Add support for sbt integration tests