Upgrade SBT, Scala and Specs2
Test for union-find algorithm
sbt 0.13.2-M3 + Scala 2.11.0-RC1
Typo
scaladoc (copied from S-99)
Upgrade to Scala 2.11.0-RC3
Specs2 for Scala 2.11.0-RC3
Upgrade to sbt 0.13.2-RC1 + fix Specs2 dependency
Remove space
sbt 0.13.5-M2
Merge pull request #1 from jaceklaskowski/master

test