bump app version - release time \o/

app/src/main/AndroidManifest.xml

 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="de.poempelfox.HaWoTemp"
-    android:versionCode="7"
-    android:versionName="0.7" >
+    android:versionCode="8"
+    android:versionName="0.8" >
 
     <uses-sdk
         android:minSdkVersion="8"