Added support for environment variables in 'actions'
Merge pull request #13 from alonl/master

Added support for environment variables in 'actions'
Merge pull request #15 from ziggystar/global-sbt-args

add support for system configuration of SBT installations
add help for new global configuration option
Merge branch 'global-sbt-args' of https://github.com/ziggystar/sbt-plugin into global-sbt-args