make sbt do what robey intended

managedDependencyPath wasn't the right key to have a separate ivy cache
for ant's ivy and sbt's... the right one is ivyCacheDirectory.

.gitignore

@@ -9,4 +9,3 @@ kestrel/*
 lib_managed/
 src_managed/
 project/boot/
-.ivy2cache

project/build/Flockdb.scala

@@ -1,11 +1,11 @@
 import sbt._
 import Process._
+import java.io.File
 
 class FlockdbProject(info: ProjectInfo) extends DefaultProject(info) {
   override def dependencyPath = "lib"
   override def disableCrossPaths = true
-
-  override def managedDependencyPath = ".ivy2cache"
+  override def ivyCacheDirectory = Some(Path.fromFile(new File(System.getProperty("user.home"))) / ".ivy2-sbt" ##)
 
   val jbossRepository   = "jboss" at "http://repository.jboss.org/maven2/"
   val lagRepository     = "lag.net" at "http://www.lag.net/repo/"