Avoid trying to normalize paths for the JRubyStormLocal configuration

This can cause problems, apparently, on Mac OS X such as:

    > Could not normalize path for file '/Users/asavchenko/.gradle/caches/modules-

NOTE: This has not yet been tested on OS X

build.gradle

@@ -19,7 +19,7 @@ apply plugin: 'com.jfrog.bintray'
 apply from: 'gradle/integration-test.gradle'
 
 group = 'com.github.jruby-gradle'
-version = '0.4.1'
+version = '0.4.2'
 defaultTasks 'check', 'assemble'
 
 // Any time we're not expicitly saying "build me a release build" we'll change

src/main/groovy/com/github/jrubygradle/storm/JRubyStormLocal.groovy

@@ -54,7 +54,7 @@ class JRubyStormLocal extends JavaExec implements JRubyExecTraits {
         super.setEnvironment getPreparedEnvironment(environment)
 
         if (parentTask) {
-            super.classpath parentTask.localConfiguration.asPath
+            super.classpath parentTask.localConfiguration
         }
 
         prepareDependencies(project)