Revert change that exited on exception in main thread (that behavior is a Scala runner bug)
Revert change that exited on exception in main thread (that behavior is a Scala runner bug)



git-svn-id: d1638b74f85650d3f310a2cdc680e2e186647006@867 d89573ee-9141-11dd-94d4-bdf5e562f29c

xeno-by/old-scalameta-sbt,mdedetrich/sbt,jamesward/xsbt,harrah/xsbt,xeno-by/old-scalameta-sbt,sbt/sbt,corespring/sbt,Duhemm/compiler-bridge,Duhemm/sbt,olove/xsbt,jkinkead/sbt,xuwei-k/xsbt,jaceklaskowski/sbt,mdedetrich/sbt,mdedetrich/sbt,gilt/xsbt,sbt/sbt,jamesward/xsbt,jamesward/xsbt,harrah/xsbt,xeno-by/old-scalameta-sbt,harrah/xsbt,gilt/xsbt,jroper/sbt,harrah/xsbt,sbt/sbt,dyx/sbt,jamesward/xsbt,adriaanm/sbt,jkinkead/sbt,xuwei-k/xsbt,jaceklaskowski/sbt,harrah/xsbt,jamesward/xsbt,mdedetrich/sbt,sbt/sbt,sbt/sbt,twitter-forks/sbt,jaceklaskowski/sbt,jasonchaffee/sbt,twitter-forks/sbt,twitter-forks/sbt,som-snytt/xsbt,xuwei-k/xsbt,olove/xsbt,dansanduleac/sbt,pocketberserker/sbt,mdedetrich/sbt,Sciss/sbt,jkinkead/sbt,xuwei-k/xsbt,jroper/sbt,olove/xsbt,pdalpra/sbt,twitter-forks/sbt,jaceklaskowski/sbt,twitter-forks/sbt,mdedetrich/sbt,sbt/sbt,gilt/xsbt,dyx/sbt,olove/xsbt,jroper/sbt,dyx/sbt,xeno-by/old-scalameta-sbt,sbt/sbt,jkinkead/sbt,xuwei-k/xsbt,xeno-by/old-scalameta-sbt,ornicar/xsbt,gilt/xsbt,xeno-by/old-scalameta-sbt,dyx/sbt,mdedetrich/sbt,jkinkead/sbt,dyx/sbt,jroper/sbt,harrah/xsbt,Duhemm/sbt,jroper/sbt,jaceklaskowski/sbt