Move XposedBridge.jar to /system/framework

With enforced SELinux, Zygote usually cannot read/execute files in /data/data.
By locating XposedBridge.jar next to the system code, we can be pretty
sure that access is always possible.

This might also help to avoid issues where the system partition is wiped,
but /data still holds an older version of XposedBridge.jar.

src/de/robv/android/xposed/XposedBridge.java

@@ -150,7 +150,7 @@ protected static void main(String[] args) {
 	private static native int getRuntime();
 
 	private static void determineXposedVersion() throws IOException {
-		ZipInputStream is = new ZipInputStream(new FileInputStream(BASE_DIR + "bin/XposedBridge.jar"));
+		ZipInputStream is = new ZipInputStream(new FileInputStream("/system/framework/XposedBridge.jar"));
 		ZipEntry entry;
 		try {
 			while ((entry = is.getNextEntry()) != null) {
@@ -166,7 +166,7 @@ private static void determineXposedVersion() throws IOException {
 					throw new RuntimeException("could not parse XposedBridge version from \"" + version + "\"");
 				return;
 			}
-			throw new RuntimeException("could not find assets/VERSION in " + BASE_DIR + "bin/XposedBridge.jar");
+			throw new RuntimeException("could not find assets/VERSION in /system/framework/XposedBridge.jar");
 		} finally {
 			try {
 				is.close();