+ added cleanup for buildFileClasspath collection

+ added FIXME: newBuildFileClasspath called twice

modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/BuildScript.kt

@@ -116,6 +116,7 @@ fun buildFileClasspath(vararg deps: String) {
 }
 
 fun newBuildFileClasspath(vararg deps: String) {
+    //FIXME newBuildFileClasspath called twice
     deps.forEach { Kobalt.addBuildFileClasspath(it) }
 }
 

modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/api/Kobalt.kt

@@ -72,7 +72,6 @@ class Kobalt {
 
         fun addBuildFileClasspath(dep: String) {
             val dependencyManager = Kobalt.INJECTOR.getInstance(DependencyManager::class.java)
-            //FIXME buildFileClasspath collection never becomes clear! each synchronization will add the same dependencies to it
             buildFileClasspath.add(dependencyManager.create(dep))
         }
 
@@ -136,6 +135,7 @@ class Kobalt {
 
         fun cleanUp() {
             buildSourceDirs.clear()
+            buildFileClasspath.clear()
         }
     }
 }