diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..6f4ef26
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,25 @@
+Changelog
+==========
+
+Version 2.0.1 *(2016-11-07)*
+----------------------------
+
+ * Splash Screen added
+
+Version 2.0 *(2016-10-15)*
+----------------------------
+
+ * Optimization of the level generator to save battery life
+ * Design-Update
+ * New Logo
+ * French translation updated
+
+Version 1.1 *(2016-03-29)*
+----------------------------
+
+ * French translation updated
+
+Version 1.0 *(2016-03-22)*
+----------------------------
+
+ * Initial Release
diff --git a/app/app.iml b/app/app.iml
deleted file mode 100644
index bc02165..0000000
--- a/app/app.iml
+++ /dev/null
@@ -1,142 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.id=":app" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$/.." external.system.id="GRADLE" external.system.module.group="privacy-friendly-sudoku" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
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-        <option name="GRADLE_PROJECT_PATH" value=":app" />
-      </configuration>
-    </facet>
-    <facet type="android" name="Android">
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-        <option name="SELECTED_TEST_ARTIFACT" value="_android_test_" />
-        <option name="ASSEMBLE_TASK_NAME" value="assembleDebug" />
-        <option name="COMPILE_JAVA_TASK_NAME" value="compileDebugSources" />
-        <afterSyncTasks>
-          <task>generateDebugSources</task>
-        </afterSyncTasks>
-        <option name="ALLOW_USER_CONFIGURATION" value="false" />
-        <option name="MANIFEST_FILE_RELATIVE_PATH" value="/src/main/AndroidManifest.xml" />
-        <option name="RES_FOLDER_RELATIVE_PATH" value="/src/main/res" />
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-        <option name="ASSETS_FOLDER_RELATIVE_PATH" value="/src/main/assets" />
-      </configuration>
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-  </component>
-  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7" inherit-compiler-output="false">
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-    <output-test url="file://$MODULE_DIR$/build/intermediates/classes/test/debug" />
-    <exclude-output />
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-      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/rs/debug" isTestSource="false" generated="true" />
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\ No newline at end of file