updated sbt to 0.13.1 and scala-virtualized to 2.10.2
add environment intialization script for hyperdsl-specific paths to submodules
updated scripts to use hyperdsl's home directory lib_managed
sync
upgraded to sbt 0.13.2
sync
sync
sync
Merge pull request #16 from stanford-ppl/wip-sbt13

Wip sbt13
merge master with optiml-perf-improvements
check for required env variables in test-all.sh; update branch pointers