diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ba077a4
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+bin
diff --git a/bin/AndroidManifest.xml b/bin/AndroidManifest.xml
deleted file mode 100644
index a7e4420..0000000
--- a/bin/AndroidManifest.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.myfirstapp"
-    android:versionCode="1"
-    android:versionName="1.0" >
-
-    <uses-feature android:glEsVersion="0x00020000" android:required="true" />
-    
-    <uses-sdk
-        android:minSdkVersion="8"
-        android:targetSdkVersion="19" />
-
-    <application
-        android:allowBackup="true"
-        android:icon="@drawable/ic_launcher"
-        android:label="@string/app_name"
-        android:theme="@style/AppTheme" >
-        <activity
-            android:name="com.example.SudokuSolver.MainActivity"
-            android:label="@string/app_name" >
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity>
-        <activity
-            android:name="com.example.SudokuSolver.DisplayMessageActivity"
-            android:label="@string/title_activity_display_message"
-            android:parentActivityName="com.example.SudokuSolver.MainActivity" >
-            <meta-data
-                android:name="android.support.PARENT_ACTIVITY"
-                android:value="com.example.myfirstapp.MainActivity" />
-        </activity>
-    </application>
-
-</manifest>
diff --git a/bin/classes/com/example/SudokuSolver/MainActivity.class b/bin/classes/com/example/SudokuSolver/MainActivity.class
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diff --git a/bin/classes/com/example/SudokuSolver/SudokuGrid.class b/bin/classes/com/example/SudokuSolver/SudokuGrid.class
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diff --git a/bin/classes/com/example/SudokuSolver/SudokuGridlarge.class b/bin/classes/com/example/SudokuSolver/SudokuGridlarge.class
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diff --git a/bin/classes/com/example/myfirstapp/BuildConfig.class b/bin/classes/com/example/myfirstapp/BuildConfig.class
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diff --git a/bin/classes/com/example/myfirstapp/R$attr.class b/bin/classes/com/example/myfirstapp/R$attr.class
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index 38ebb2e..0000000
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diff --git a/bin/classes/com/example/myfirstapp/R$dimen.class b/bin/classes/com/example/myfirstapp/R$dimen.class
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diff --git a/bin/classes/com/example/myfirstapp/R$drawable.class b/bin/classes/com/example/myfirstapp/R$drawable.class
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diff --git a/bin/classes/com/example/myfirstapp/R$id.class b/bin/classes/com/example/myfirstapp/R$id.class
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diff --git a/bin/classes/com/example/myfirstapp/R$layout.class b/bin/classes/com/example/myfirstapp/R$layout.class
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diff --git a/bin/classes/com/example/myfirstapp/R$menu.class b/bin/classes/com/example/myfirstapp/R$menu.class
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index e6b29cc..0000000
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diff --git a/bin/classes/com/example/myfirstapp/R$string.class b/bin/classes/com/example/myfirstapp/R$string.class
deleted file mode 100644
index a8c90c8..0000000
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diff --git a/bin/classes/com/example/myfirstapp/R$style.class b/bin/classes/com/example/myfirstapp/R$style.class
deleted file mode 100644
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diff --git a/bin/classes/com/example/myfirstapp/R.class b/bin/classes/com/example/myfirstapp/R.class
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diff --git a/bin/jarlist.cache b/bin/jarlist.cache
deleted file mode 100644
index 0565465..0000000
--- a/bin/jarlist.cache
+++ /dev/null
@@ -1,3 +0,0 @@
-# cache for current jar dependency. DO NOT EDIT.
-# format is <lastModified> <length> <SHA-1> <path>
-# Encoding is UTF-8