diff --git a/.idea/modules/kudens.iml b/.idea/modules/kudens.iml
index bb33e4b..0487f52 100644
--- a/.idea/modules/kudens.iml
+++ b/.idea/modules/kudens.iml
@@ -1,5 +1,31 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="kotlin-language" name="Kotlin">
+      <configuration version="1">
+        <option name="compilerInfo">
+          <KotlinCompilerInfo>
+            <option name="compilerSettings">
+              <CompilerSettings />
+            </option>
+            <option name="k2jsCompilerArguments">
+              <K2JSCompilerArguments />
+            </option>
+            <option name="_commonCompilerArguments">
+              <DummyImpl />
+            </option>
+          </KotlinCompilerInfo>
+        </option>
+        <option name="versionInfo">
+          <KotlinVersionInfo>
+            <option name="apiLevel" value="1.1" />
+            <option name="languageLevel" value="1.1" />
+            <option name="targetPlatformName" value="JavaScript " />
+          </KotlinVersionInfo>
+        </option>
+      </configuration>
+    </facet>
+  </component>
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$/../..">

diff --git a/.idea/modules/kudens.iml b/.idea/modules/kudens.iml
index bb33e4b..0487f52 100644
--- a/.idea/modules/kudens.iml
+++ b/.idea/modules/kudens.iml
@@ -1,5 +1,31 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="kotlin-language" name="Kotlin">
+      <configuration version="1">
+        <option name="compilerInfo">
+          <KotlinCompilerInfo>
+            <option name="compilerSettings">
+              <CompilerSettings />
+            </option>
+            <option name="k2jsCompilerArguments">
+              <K2JSCompilerArguments />
+            </option>
+            <option name="_commonCompilerArguments">
+              <DummyImpl />
+            </option>
+          </KotlinCompilerInfo>
+        </option>
+        <option name="versionInfo">
+          <KotlinVersionInfo>
+            <option name="apiLevel" value="1.1" />
+            <option name="languageLevel" value="1.1" />
+            <option name="targetPlatformName" value="JavaScript " />
+          </KotlinVersionInfo>
+        </option>
+      </configuration>
+    </facet>
+  </component>
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$/../..">
diff --git a/build.gradle b/build.gradle
index 4562616..039bc70 100644
--- a/build.gradle
+++ b/build.gradle
@@ -39,7 +39,7 @@
 dependencies {
     compile "org.jetbrains.kotlin:kotlin-js-library:$kotlin_version"
 }
-
+/*
 task jarSources(type:Jar){
     from sourceSets.main.allSource
 
@@ -48,7 +48,7 @@
 
 artifacts {
     compile jarSources
-}
+}*/
 
 compileKotlin2Js {
     kotlinOptions.metaInfo = true
@@ -67,7 +67,6 @@
 
     manifest {
         attributes(
-                "Specification-Title": "Kudens game lib",
                 "Kotlin-JS-Module-Name": "lib-kudens"
         )
     }
@@ -75,6 +74,7 @@
 
 jar.dependsOn(compileKotlin2Js)
 
+/*
 build.doLast {
     configurations.compile.each { File file ->
         copy {
@@ -89,6 +89,7 @@
         }
     }
 }
+*/
 
 uploadArchives {
     repositories {

diff --git a/.idea/modules/kudens.iml b/.idea/modules/kudens.iml
index bb33e4b..0487f52 100644
--- a/.idea/modules/kudens.iml
+++ b/.idea/modules/kudens.iml
@@ -1,5 +1,31 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module external.linked.project.id="kudens" external.linked.project.path="$MODULE_DIR$/../.." external.root.project.path="$MODULE_DIR$/../.." external.system.id="GRADLE" external.system.module.group="com.persesgames" external.system.module.version="1.0.0-SNAPSHOT" type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="kotlin-language" name="Kotlin">
+      <configuration version="1">
+        <option name="compilerInfo">
+          <KotlinCompilerInfo>
+            <option name="compilerSettings">
+              <CompilerSettings />
+            </option>
+            <option name="k2jsCompilerArguments">
+              <K2JSCompilerArguments />
+            </option>
+            <option name="_commonCompilerArguments">
+              <DummyImpl />
+            </option>
+          </KotlinCompilerInfo>
+        </option>
+        <option name="versionInfo">
+          <KotlinVersionInfo>
+            <option name="apiLevel" value="1.1" />
+            <option name="languageLevel" value="1.1" />
+            <option name="targetPlatformName" value="JavaScript " />
+          </KotlinVersionInfo>
+        </option>
+      </configuration>
+    </facet>
+  </component>
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$/../..">
diff --git a/build.gradle b/build.gradle
index 4562616..039bc70 100644
--- a/build.gradle
+++ b/build.gradle
@@ -39,7 +39,7 @@
 dependencies {
     compile "org.jetbrains.kotlin:kotlin-js-library:$kotlin_version"
 }
-
+/*
 task jarSources(type:Jar){
     from sourceSets.main.allSource
 
@@ -48,7 +48,7 @@
 
 artifacts {
     compile jarSources
-}
+}*/
 
 compileKotlin2Js {
     kotlinOptions.metaInfo = true
@@ -67,7 +67,6 @@
 
     manifest {
         attributes(
-                "Specification-Title": "Kudens game lib",
                 "Kotlin-JS-Module-Name": "lib-kudens"
         )
     }
@@ -75,6 +74,7 @@
 
 jar.dependsOn(compileKotlin2Js)
 
+/*
 build.doLast {
     configurations.compile.each { File file ->
         copy {
@@ -89,6 +89,7 @@
         }
     }
 }
+*/
 
 uploadArchives {
     repositories {
diff --git a/src/com/persesgames/sound/Music.kt b/src/com/persesgames/sound/Music.kt
index ec775b1..be30ae3 100644
--- a/src/com/persesgames/sound/Music.kt
+++ b/src/com/persesgames/sound/Music.kt
@@ -18,7 +18,7 @@
 
         audio.src = url
 
-        return audio;
+        return audio
     }
 
     fun play(url: String, volume: Double = 0.75, looping: Boolean = false): HTMLAudioElement {